Merge remote-tracking branch 'upstream/bugfix-1.1.x' into 1.1.x

.travis.yml

@@ -90,19 +90,24 @@ script:
   - opt_enable REPRAP_DISCOUNT_SMART_CONTROLLER SDSUPPORT EEPROM_SETTINGS
   - opt_enable BLINKM PCA9632 RGB_LED NEOPIXEL_RGBW_LED
   - opt_enable AUTO_BED_LEVELING_LINEAR Z_MIN_PROBE_REPEATABILITY_TEST DEBUG_LEVELING_FEATURE
-  - opt_enable_adv FWRETRACT
+  - opt_enable_adv FWRETRACT MAX7219_DEBUG
   - opt_set ABL_GRID_POINTS_X 16
   - opt_set ABL_GRID_POINTS_Y 16
   - opt_set_adv FANMUX0_PIN 53
   - build_marlin
   #
-  # Test a simple build of AUTO_BED_LEVELING_UBL
+  # Test a probeless build of AUTO_BED_LEVELING_UBL
   #
   - restore_configs
-  - opt_enable AUTO_BED_LEVELING_UBL UBL_G26_MESH_EDITING ENABLE_LEVELING_FADE_HEIGHT FIX_MOUNTED_PROBE EEPROM_SETTINGS G3D_PANEL
+  - opt_enable AUTO_BED_LEVELING_UBL UBL_G26_MESH_EDITING ENABLE_LEVELING_FADE_HEIGHT EEPROM_SETTINGS G3D_PANEL
   - opt_enable_adv CUSTOM_USER_MENUS I2C_POSITION_ENCODERS BABYSTEPPING
   - build_marlin
   #
+  # And with a probe...
+  #
+  - opt_enable FIX_MOUNTED_PROBE
+  - build_marlin
+  #
   # Test a Sled Z Probe
   # ...with AUTO_BED_LEVELING_LINEAR, DEBUG_LEVELING_FEATURE, EEPROM_SETTINGS, and EEPROM_CHITCHAT
   #
@@ -190,14 +195,14 @@ script:
   #      ULTIMAKERCONTROLLER, FILAMENT_LCD_DISPLAY, FILAMENT_WIDTH_SENSOR,
   #      PRINTCOUNTER, NOZZLE_PARK_FEATURE, NOZZLE_CLEAN_FEATURE, PCA9632,
   #      Z_DUAL_STEPPER_DRIVERS, Z_DUAL_ENDSTOPS, BEZIER_CURVE_SUPPORT, EXPERIMENTAL_I2CBUS,
-  #      FILAMENT_CHANGE_FEATURE, PARK_HEAD_ON_PAUSE, LCD_INFO_MENU,
+  #      ADVANCED_PAUSE_FEATURE, PARK_HEAD_ON_PAUSE, LCD_INFO_MENU,
   #
   - restore_configs
   - opt_enable ULTIMAKERCONTROLLER FILAMENT_LCD_DISPLAY FILAMENT_WIDTH_SENSOR SDSUPPORT
   - opt_enable PRINTCOUNTER NOZZLE_PARK_FEATURE NOZZLE_CLEAN_FEATURE PCA9632
   - opt_enable_adv Z_DUAL_STEPPER_DRIVERS Z_DUAL_ENDSTOPS BEZIER_CURVE_SUPPORT EXPERIMENTAL_I2CBUS
   - opt_set_adv I2C_SLAVE_ADDRESS 63
-  - opt_enable_adv FILAMENT_CHANGE_FEATURE PARK_HEAD_ON_PAUSE LCD_INFO_MENU
+  - opt_enable_adv ADVANCED_PAUSE_FEATURE PARK_HEAD_ON_PAUSE LCD_INFO_MENU
   - pins_set RAMPS X_MAX_PIN -1
   - opt_set_adv Z2_MAX_PIN 2
   - build_marlin

Marlin/Conditionals_LCD.h

@@ -34,17 +34,13 @@
 
     #define DOGLCD
     #define ULTIPANEL
-    #define NEWPANEL
     #define DEFAULT_LCD_CONTRAST 90
     #define LCD_CONTRAST_MIN 60
     #define LCD_CONTRAST_MAX 140
 
-  #elif ENABLED(MAKRPANEL) || ENABLED(MINIPANEL)
+  #elif ENABLED(MAKRPANEL)
 
-    #define DOGLCD
-    #define ULTIPANEL
-    #define NEWPANEL
-    #define DEFAULT_LCD_CONTRAST 17
+    #define U8GLIB_ST7565_64128N
 
   #elif ENABLED(ANET_KEYPAD_LCD)
 
@@ -53,7 +49,9 @@
     #define ADC_KEYPAD
     #define ADC_KEY_NUM 8
     #define ULTIPANEL
+
     // this helps to implement ADC_KEYPAD menus
+    #define ENCODER_PULSES_PER_STEP 1
     #define ENCODER_STEPS_PER_MENU_ITEM 1
     #define REVERSE_MENU_DIRECTION
 
@@ -73,14 +71,18 @@
     #define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
 
     #if ENABLED(miniVIKI)
-      #define LCD_CONTRAST_MIN  75
-      #define LCD_CONTRAST_MAX 115
-      #define DEFAULT_LCD_CONTRAST 95
+      #define LCD_CONTRAST_MIN      75
+      #define LCD_CONTRAST_MAX     115
+      #define DEFAULT_LCD_CONTRAST  95
+      #define U8GLIB_ST7565_64128N
     #elif ENABLED(VIKI2)
-      #define DEFAULT_LCD_CONTRAST 40
+      #define LCD_CONTRAST_MIN       0
+      #define LCD_CONTRAST_MAX     255
+      #define DEFAULT_LCD_CONTRAST 140
+      #define U8GLIB_ST7565_64128N
     #elif ENABLED(ELB_FULL_GRAPHIC_CONTROLLER)
-      #define LCD_CONTRAST_MIN  90
-      #define LCD_CONTRAST_MAX 130
+      #define LCD_CONTRAST_MIN      90
+      #define LCD_CONTRAST_MAX     130
       #define DEFAULT_LCD_CONTRAST 110
       #define U8GLIB_LM6059_AF
       #define SD_DETECT_INVERTED
@@ -90,7 +92,6 @@
 
     #define U8GLIB_SSD1306
     #define ULTIPANEL
-    #define NEWPANEL
     #define REVERSE_ENCODER_DIRECTION
     #define REVERSE_MENU_DIRECTION
 
@@ -99,17 +100,43 @@
     #define LCD_I2C_TYPE_PCA8574
     #define LCD_I2C_ADDRESS 0x27   // I2C Address of the port expander
     #define ULTIPANEL
-    #define NEWPANEL
 
   #elif ENABLED(REPRAPWORLD_GRAPHICAL_LCD)
 
     #define DOGLCD
     #define U8GLIB_ST7920
     #define ULTIPANEL
-    #define NEWPANEL
+
+  #elif ENABLED(CR10_STOCKDISPLAY)
+
+    #define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER
+    #ifndef ST7920_DELAY_1
+      #define ST7920_DELAY_1 DELAY_2_NOP
+    #endif
+    #ifndef ST7920_DELAY_2
+      #define ST7920_DELAY_2 DELAY_2_NOP
+    #endif
+    #ifndef ST7920_DELAY_3
+      #define ST7920_DELAY_3 DELAY_2_NOP
+    #endif
+
+  #elif ENABLED(MKS_12864OLED)
+
+    #define REPRAP_DISCOUNT_SMART_CONTROLLER
+    #define U8GLIB_SH1106
+
+  #elif ENABLED(MKS_MINI_12864)
+
+    #define MINIPANEL
 
   #endif
 
+  #if ENABLED(MAKRPANEL) || ENABLED(MINIPANEL)
+    #define DOGLCD
+    #define ULTIPANEL
+    #define DEFAULT_LCD_CONTRAST 17
+  #endif
+
   // Generic support for SSD1306 / SH1106 OLED based LCDs.
   #if ENABLED(U8GLIB_SSD1306) || ENABLED(U8GLIB_SH1106)
     #define ULTRA_LCD  //general LCD support, also 16x2
@@ -117,7 +144,15 @@
   #endif
 
   #if ENABLED(PANEL_ONE) || ENABLED(U8GLIB_SH1106)
+
     #define ULTIMAKERCONTROLLER
+
+  #elif ENABLED(MAKEBOARD_MINI_2_LINE_DISPLAY_1602)
+
+    #define REPRAP_DISCOUNT_SMART_CONTROLLER
+    #define LCD_WIDTH 16
+    #define LCD_HEIGHT 2
+
   #endif
 
   #if ENABLED(REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER) || ENABLED(LCD_FOR_MELZI)
@@ -131,7 +166,6 @@
    || ENABLED(G3D_PANEL)                        \
    || ENABLED(RIGIDBOT_PANEL)
     #define ULTIPANEL
-    #define NEWPANEL
   #endif
 
   #if ENABLED(REPRAPWORLD_KEYPAD)
@@ -153,7 +187,6 @@
     #define LCD_I2C_TYPE_PCF8575
     #define LCD_I2C_ADDRESS 0x27   // I2C Address of the port expander
     #define ULTIPANEL
-    #define NEWPANEL
 
   #elif ENABLED(LCD_I2C_PANELOLU2)
 
@@ -163,7 +196,6 @@
     #define LCD_I2C_ADDRESS 0x20 // I2C Address of the port expander
     #define LCD_USE_I2C_BUZZER //comment out to disable buzzer on LCD
     #define ULTIPANEL
-    #define NEWPANEL
 
   #elif ENABLED(LCD_I2C_VIKI)
 
@@ -179,27 +211,41 @@
     #define LCD_I2C_ADDRESS 0x20 // I2C Address of the port expander
     #define LCD_USE_I2C_BUZZER //comment out to disable buzzer on LCD (requires LiquidTWI2 v1.2.3 or later)
     #define ULTIPANEL
-    #define NEWPANEL
 
     #define ENCODER_FEEDRATE_DEADZONE 4
 
-    #ifndef ENCODER_PULSES_PER_STEP
-      #define ENCODER_PULSES_PER_STEP 1
-    #endif
-    #ifndef ENCODER_STEPS_PER_MENU_ITEM
-      #define ENCODER_STEPS_PER_MENU_ITEM 2
-    #endif
+    #define STD_ENCODER_PULSES_PER_STEP 1
+    #define STD_ENCODER_STEPS_PER_MENU_ITEM 2
+
+  #elif ENABLED(G3D_PANEL)
+
+    #define STD_ENCODER_PULSES_PER_STEP 2
+    #define STD_ENCODER_STEPS_PER_MENU_ITEM 1
+
+  #elif ENABLED(miniVIKI) || ENABLED(VIKI2) \
+     || ENABLED(ELB_FULL_GRAPHIC_CONTROLLER) \
+     || ENABLED(OLED_PANEL_TINYBOY2) \
+     || ENABLED(BQ_LCD_SMART_CONTROLLER) \
+     || ENABLED(LCD_I2C_PANELOLU2) \
+     || ENABLED(REPRAP_DISCOUNT_SMART_CONTROLLER)
+    #define STD_ENCODER_PULSES_PER_STEP 4
+    #define STD_ENCODER_STEPS_PER_MENU_ITEM 1
   #endif
 
-  // Set encoder detents for well-known controllers
-  #if ENABLED(miniVIKI) || ENABLED(VIKI2) || ENABLED(ELB_FULL_GRAPHIC_CONTROLLER) || ENABLED(OLED_PANEL_TINYBOY2) \
-   || ENABLED(BQ_LCD_SMART_CONTROLLER) || ENABLED(LCD_I2C_PANELOLU2) || ENABLED(REPRAP_DISCOUNT_SMART_CONTROLLER)
-    #ifndef ENCODER_PULSES_PER_STEP
-      #define ENCODER_PULSES_PER_STEP 4
-    #endif
-    #ifndef ENCODER_STEPS_PER_MENU_ITEM
-      #define ENCODER_STEPS_PER_MENU_ITEM 1
-    #endif
+  #ifndef STD_ENCODER_PULSES_PER_STEP
+    #define STD_ENCODER_PULSES_PER_STEP 5
+  #endif
+  #ifndef STD_ENCODER_STEPS_PER_MENU_ITEM
+    #define STD_ENCODER_STEPS_PER_MENU_ITEM 1
+  #endif
+  #ifndef ENCODER_PULSES_PER_STEP
+    #define ENCODER_PULSES_PER_STEP STD_ENCODER_PULSES_PER_STEP
+  #endif
+  #ifndef ENCODER_STEPS_PER_MENU_ITEM
+    #define ENCODER_STEPS_PER_MENU_ITEM STD_ENCODER_STEPS_PER_MENU_ITEM
+  #endif
+  #ifndef ENCODER_FEEDRATE_DEADZONE
+    #define ENCODER_FEEDRATE_DEADZONE 6
   #endif
 
   // Shift register panels
@@ -210,7 +256,6 @@
   #if ENABLED(SAV_3DLCD)
     #define SR_LCD_2W_NL    // Non latching 2 wire shift register
     #define ULTIPANEL
-    #define NEWPANEL
   #endif
 
   #if ENABLED(DOGLCD) // Change number of lines to match the DOG graphic display
@@ -223,7 +268,7 @@
   #endif
 
   #if ENABLED(ULTIPANEL)
-    #define NEWPANEL  //enable this if you have a click-encoder panel
+    #define NEWPANEL  // Disable this if you actually have no click-encoder panel
     #define ULTRA_LCD
     #ifndef LCD_WIDTH
       #define LCD_WIDTH 20
@@ -231,14 +276,12 @@
     #ifndef LCD_HEIGHT
       #define LCD_HEIGHT 4
     #endif
-  #else // no panel but just LCD
-    #if ENABLED(ULTRA_LCD)
-      #ifndef LCD_WIDTH
-        #define LCD_WIDTH 16
-      #endif
-      #ifndef LCD_HEIGHT
-        #define LCD_HEIGHT 2
-      #endif
+  #elif ENABLED(ULTRA_LCD)  // no panel but just LCD
+    #ifndef LCD_WIDTH
+      #define LCD_WIDTH 16
+    #endif
+    #ifndef LCD_HEIGHT
+      #define LCD_HEIGHT 2
     #endif
   #endif
 
@@ -432,6 +475,6 @@
 
   #define HAS_SOFTWARE_ENDSTOPS (ENABLED(MIN_SOFTWARE_ENDSTOPS) || ENABLED(MAX_SOFTWARE_ENDSTOPS))
   #define HAS_RESUME_CONTINUE (ENABLED(NEWPANEL) || ENABLED(EMERGENCY_PARSER))
-  #define HAS_COLOR_LEDS (ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED))
+  #define HAS_COLOR_LEDS (ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_LED))
 
 #endif // CONDITIONALS_LCD_H

Marlin/Conditionals_post.h

@@ -28,6 +28,10 @@
 #ifndef CONDITIONALS_POST_H
 #define CONDITIONALS_POST_H
 
+  #define IS_SCARA (ENABLED(MORGAN_SCARA) || ENABLED(MAKERARM_SCARA))
+  #define IS_KINEMATIC (ENABLED(DELTA) || IS_SCARA)
+  #define IS_CARTESIAN !IS_KINEMATIC
+
   /**
    * Axis lengths and center
    */
@@ -43,6 +47,12 @@
     #define Y_BED_SIZE Y_MAX_LENGTH
   #endif
 
+  // Require 0,0 bed center for Delta and SCARA
+  #if IS_KINEMATIC
+    #define BED_CENTER_AT_0_0
+  #endif
+
+  // Define center values for future use
   #if ENABLED(BED_CENTER_AT_0_0)
     #define X_CENTER 0
     #define Y_CENTER 0
@@ -52,6 +62,7 @@
   #endif
   #define Z_CENTER ((Z_MIN_POS + Z_MAX_POS) / 2)
 
+  // Get the linear boundaries of the bed
   #define X_MIN_BED (X_CENTER - (X_BED_SIZE) / 2)
   #define X_MAX_BED (X_CENTER + (X_BED_SIZE) / 2)
   #define Y_MIN_BED (Y_CENTER - (Y_BED_SIZE) / 2)
@@ -85,10 +96,6 @@
     #endif
   #endif
 
-  #define IS_SCARA (ENABLED(MORGAN_SCARA) || ENABLED(MAKERARM_SCARA))
-  #define IS_KINEMATIC (ENABLED(DELTA) || IS_SCARA)
-  #define IS_CARTESIAN !IS_KINEMATIC
-
   /**
    * No adjustable bed on non-cartesians
    */
@@ -220,13 +227,8 @@
   #define MICROSTEP16 HIGH,HIGH
 
   /**
-   * Advance calculated values
+   * Override here because this is set in Configuration_adv.h
    */
-  #if ENABLED(ADVANCE)
-    #define EXTRUSION_AREA (0.25 * (D_FILAMENT) * (D_FILAMENT) * M_PI)
-    #define STEPS_PER_CUBIC_MM_E (axis_steps_per_mm[E_AXIS_N] / (EXTRUSION_AREA))
-  #endif
-
   #if ENABLED(ULTIPANEL) && DISABLED(ELB_FULL_GRAPHIC_CONTROLLER)
     #undef SD_DETECT_INVERTED
   #endif

Marlin/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -181,7 +182,7 @@
  */
 //#define PARKING_EXTRUDER
 #if ENABLED(PARKING_EXTRUDER)
-  #define PARKING_EXTRUDER_SOLENOIDS_INVERT           // If enabled, the solenoid not magnetized with applied voltage
+  #define PARKING_EXTRUDER_SOLENOIDS_INVERT           // If enabled, the solenoid is NOT magnetized with applied voltage
   #define PARKING_EXTRUDER_SOLENOIDS_PINS_ACTIVE LOW  // LOW or HIGH pin signal energizes the coil
   #define PARKING_EXTRUDER_SOLENOIDS_DELAY 250        // Delay (ms) for magnetic field. No delay if 0 or not defined.
   #define PARKING_EXTRUDER_PARKING_X { -78, 184 }     // X positions for parking the extruders
@@ -759,6 +760,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -955,9 +958,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1198,7 +1203,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1498,6 +1503,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1554,16 +1588,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1572,11 +1612,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**
@@ -1590,7 +1633,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1382,4 +1393,32 @@
 
 #endif // I2C_POSITION_ENCODERS
 
+/**
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
+//#define MAX7219_DEBUG
+#if ENABLED(MAX7219_DEBUG)
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
+
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
+   */
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
+
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
+#endif
+
 #endif // CONFIGURATION_ADV_H

Marlin/G26_Mesh_Validation_Tool.cpp

@@ -136,13 +136,8 @@
   extern float destination[XYZE];
   void set_destination_to_current();
   void prepare_move_to_destination();
-  #if AVR_AT90USB1286_FAMILY  // Teensyduino & Printrboard IDE extensions have compile errors without this
-    inline void sync_plan_position_e() { planner.set_e_position_mm(current_position[E_AXIS]); }
-    inline void set_current_to_destination() { COPY(current_position, destination); }
-  #else
-    void sync_plan_position_e();
-    void set_current_to_destination();
-  #endif
+  inline void sync_plan_position_e() { planner.set_e_position_mm(current_position[E_AXIS]); }
+  inline void set_current_to_destination() { COPY(current_position, destination); }
   #if ENABLED(NEWPANEL)
     void lcd_setstatusPGM(const char* const message, const int8_t level);
     void chirp_at_user();

Marlin/Marlin.h

@@ -302,9 +302,9 @@ extern float soft_endstop_min[XYZ], soft_endstop_max[XYZ];
                delta_diagonal_rod,
                delta_calibration_radius,
                delta_segments_per_second,
-               delta_tower_angle_trim[2],
+               delta_tower_angle_trim[ABC],
                delta_clip_start_height;
-  void recalc_delta_settings(float radius, float diagonal_rod);
+  void recalc_delta_settings(float radius, float diagonal_rod, float tower_angle_trim[ABC]);
 #elif IS_SCARA
   void forward_kinematics_SCARA(const float &a, const float &b);
 #endif
@@ -422,7 +422,17 @@ void do_blocking_move_to_x(const float &x, const float &fr_mm_s=0.0);
 void do_blocking_move_to_z(const float &z, const float &fr_mm_s=0.0);
 void do_blocking_move_to_xy(const float &x, const float &y, const float &fr_mm_s=0.0);
 
-#if ENABLED(Z_PROBE_ALLEN_KEY) || ENABLED(Z_PROBE_SLED) || HAS_PROBING_PROCEDURE || HOTENDS > 1 || ENABLED(NOZZLE_CLEAN_FEATURE) || ENABLED(NOZZLE_PARK_FEATURE)
+#define HAS_AXIS_UNHOMED_ERR (                                                     \
+         ENABLED(Z_PROBE_ALLEN_KEY)                                                \
+      || ENABLED(Z_PROBE_SLED)                                                     \
+      || HAS_PROBING_PROCEDURE                                                     \
+      || HOTENDS > 1                                                               \
+      || ENABLED(NOZZLE_CLEAN_FEATURE)                                             \
+      || ENABLED(NOZZLE_PARK_FEATURE)                                              \
+      || (ENABLED(ADVANCED_PAUSE_FEATURE) && ENABLED(HOME_BEFORE_FILAMENT_CHANGE)) \
+    ) || ENABLED(NO_MOTION_BEFORE_HOMING)
+
+#if HAS_AXIS_UNHOMED_ERR
   bool axis_unhomed_error(const bool x=true, const bool y=true, const bool z=true);
 #endif
 

Marlin/MarlinSerial.cpp

@@ -27,15 +27,30 @@
  * Modified 23 November 2006 by David A. Mellis
  * Modified 28 September 2010 by Mark Sproul
  * Modified 14 February 2016 by Andreas Hardtung (added tx buffer)
+ * Modified 01 October 2017 by Eduardo José Tagle (added XON/XOFF)
  */
 
-#include "MarlinSerial.h"
-#include "Marlin.h"
-
 // Disable HardwareSerial.cpp to support chips without a UART (Attiny, etc.)
 
+#include "MarlinConfig.h"
+
 #if !defined(USBCON) && (defined(UBRRH) || defined(UBRR0H) || defined(UBRR1H) || defined(UBRR2H) || defined(UBRR3H))
 
+  #include "MarlinSerial.h"
+  #include "Marlin.h"
+
+  struct ring_buffer_r {
+    unsigned char buffer[RX_BUFFER_SIZE];
+    volatile ring_buffer_pos_t head, tail;
+  };
+
+  #if TX_BUFFER_SIZE > 0
+    struct ring_buffer_t {
+      unsigned char buffer[TX_BUFFER_SIZE];
+      volatile uint8_t head, tail;
+    };
+  #endif
+
   #if UART_PRESENT(SERIAL_PORT)
     ring_buffer_r rx_buffer = { { 0 }, 0, 0 };
     #if TX_BUFFER_SIZE > 0
@@ -44,6 +59,23 @@
     #endif
   #endif
 
+  #if ENABLED(SERIAL_XON_XOFF)
+    constexpr uint8_t XON_XOFF_CHAR_SENT = 0x80;  // XON / XOFF Character was sent
+    constexpr uint8_t XON_XOFF_CHAR_MASK = 0x1F;  // XON / XOFF character to send
+    // XON / XOFF character definitions
+    constexpr uint8_t XON_CHAR  = 17;
+    constexpr uint8_t XOFF_CHAR = 19;
+    uint8_t xon_xoff_state = XON_XOFF_CHAR_SENT | XON_CHAR;
+  #endif
+
+  #if ENABLED(SERIAL_STATS_DROPPED_RX)
+    uint8_t rx_dropped_bytes = 0;
+  #endif
+
+  #if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
+    ring_buffer_pos_t rx_max_enqueued = 0;
+  #endif
+
   #if ENABLED(EMERGENCY_PARSER)
 
     #include "stepper.h"
@@ -136,20 +168,78 @@
 
   #endif // EMERGENCY_PARSER
 
-  FORCE_INLINE void store_char(unsigned char c) {
-    CRITICAL_SECTION_START;
-      const uint8_t h = rx_buffer.head,
-                    i = (uint8_t)(h + 1) & (RX_BUFFER_SIZE - 1);
-
-      // if we should be storing the received character into the location
-      // just before the tail (meaning that the head would advance to the
-      // current location of the tail), we're about to overflow the buffer
-      // and so we don't write the character or advance the head.
-      if (i != rx_buffer.tail) {
-        rx_buffer.buffer[h] = c;
-        rx_buffer.head = i;
+  FORCE_INLINE void store_rxd_char() {
+    const ring_buffer_pos_t h = rx_buffer.head,
+                            i = (ring_buffer_pos_t)(h + 1) & (ring_buffer_pos_t)(RX_BUFFER_SIZE - 1);
+
+    // If the character is to be stored at the index just before the tail
+    // (such that the head would advance to the current tail), the buffer is
+    // critical, so don't write the character or advance the head.
+    if (i != rx_buffer.tail) {
+      rx_buffer.buffer[h] = M_UDRx;
+      rx_buffer.head = i;
+    }
+    else {
+      (void)M_UDRx;
+      #if ENABLED(SERIAL_STATS_DROPPED_RX)
+        if (!++rx_dropped_bytes) ++rx_dropped_bytes;
+      #endif
+    }
+
+    #if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
+      // calculate count of bytes stored into the RX buffer
+      ring_buffer_pos_t rx_count = (ring_buffer_pos_t)(rx_buffer.head - rx_buffer.tail) & (ring_buffer_pos_t)(RX_BUFFER_SIZE - 1);
+      // Keep track of the maximum count of enqueued bytes
+      NOLESS(rx_max_enqueued, rx_count);
+    #endif
+
+    #if ENABLED(SERIAL_XON_XOFF)
+
+      // for high speed transfers, we can use XON/XOFF protocol to do
+      // software handshake and avoid overruns.
+      if ((xon_xoff_state & XON_XOFF_CHAR_MASK) == XON_CHAR) {
+
+        // calculate count of bytes stored into the RX buffer
+        ring_buffer_pos_t rx_count = (ring_buffer_pos_t)(rx_buffer.head - rx_buffer.tail) & (ring_buffer_pos_t)(RX_BUFFER_SIZE - 1);
+
+        // if we are above 12.5% of RX buffer capacity, send XOFF before
+        // we run out of RX buffer space .. We need 325 bytes @ 250kbits/s to
+        // let the host react and stop sending bytes. This translates to 13mS
+        // propagation time.
+        if (rx_count >= (RX_BUFFER_SIZE) / 8) {
+          // If TX interrupts are disabled and data register is empty,
+          // just write the byte to the data register and be done. This
+          // shortcut helps significantly improve the effective datarate
+          // at high (>500kbit/s) bitrates, where interrupt overhead
+          // becomes a slowdown.
+          if (!TEST(M_UCSRxB, M_UDRIEx) && TEST(M_UCSRxA, M_UDREx)) {
+            // Send an XOFF character
+            M_UDRx = XOFF_CHAR;
+            // clear the TXC bit -- "can be cleared by writing a one to its bit
+            // location". This makes sure flush() won't return until the bytes
+            // actually got written
+            SBI(M_UCSRxA, M_TXCx);
+            // And remember it was sent
+            xon_xoff_state = XOFF_CHAR | XON_XOFF_CHAR_SENT;
+          }
+          else {
+            // TX interrupts disabled, but buffer still not empty ... or
+            // TX interrupts enabled. Reenable TX ints and schedule XOFF
+            // character to be sent
+            #if TX_BUFFER_SIZE > 0
+              SBI(M_UCSRxB, M_UDRIEx);
+              xon_xoff_state = XOFF_CHAR;
+            #else
+              // We are not using TX interrupts, we will have to send this manually
+              while (!TEST(M_UCSRxA, M_UDREx)) {/* nada */}
+              M_UDRx = XOFF_CHAR;
+              // And remember we already sent it
+              xon_xoff_state = XOFF_CHAR | XON_XOFF_CHAR_SENT;
+            #endif
+          }
+        }
       }
-    CRITICAL_SECTION_END;
+    #endif // SERIAL_XON_XOFF
 
     #if ENABLED(EMERGENCY_PARSER)
       emergency_parser(c);
@@ -160,37 +250,41 @@
 
     FORCE_INLINE void _tx_udr_empty_irq(void) {
       // If interrupts are enabled, there must be more data in the output
-      // buffer. Send the next byte
-      const uint8_t t = tx_buffer.tail,
-                    c = tx_buffer.buffer[t];
-      tx_buffer.tail = (t + 1) & (TX_BUFFER_SIZE - 1);
-
-      M_UDRx = c;
+      // buffer.
+
+      #if ENABLED(SERIAL_XON_XOFF)
+        // Do a priority insertion of an XON/XOFF char, if needed.
+        const uint8_t state = xon_xoff_state;
+        if (!(state & XON_XOFF_CHAR_SENT)) {
+          M_UDRx = state & XON_XOFF_CHAR_MASK;
+          xon_xoff_state = state | XON_XOFF_CHAR_SENT;
+        }
+        else
+      #endif
+      { // Send the next byte
+        const uint8_t t = tx_buffer.tail, c = tx_buffer.buffer[t];
+        tx_buffer.tail = (t + 1) & (TX_BUFFER_SIZE - 1);
+        M_UDRx = c;
+      }
 
       // clear the TXC bit -- "can be cleared by writing a one to its bit
       // location". This makes sure flush() won't return until the bytes
       // actually got written
       SBI(M_UCSRxA, M_TXCx);
 
-      if (tx_buffer.head == tx_buffer.tail) {
-        // Buffer empty, so disable interrupts
+      // Disable interrupts if the buffer is empty
+      if (tx_buffer.head == tx_buffer.tail)
         CBI(M_UCSRxB, M_UDRIEx);
-      }
     }
 
     #ifdef M_USARTx_UDRE_vect
-      ISR(M_USARTx_UDRE_vect) {
-        _tx_udr_empty_irq();
-      }
+      ISR(M_USARTx_UDRE_vect) { _tx_udr_empty_irq(); }
     #endif
 
   #endif // TX_BUFFER_SIZE
 
   #ifdef M_USARTx_RX_vect
-    ISR(M_USARTx_RX_vect) {
-      const unsigned char c = M_UDRx;
-      store_char(c);
-    }
+    ISR(M_USARTx_RX_vect) { store_rxd_char(); }
   #endif
 
   // Public Methods
@@ -200,9 +294,9 @@
     bool useU2X = true;
 
     #if F_CPU == 16000000UL && SERIAL_PORT == 0
-      // hard-coded exception for compatibility with the bootloader shipped
-      // with the Duemilanove and previous boards and the firmware on the 8U2
-      // on the Uno and Mega 2560.
+      // Hard-coded exception for compatibility with the bootloader shipped
+      // with the Duemilanove and previous boards, and the firmware on the
+      // 8U2 on the Uno and Mega 2560.
       if (baud == 57600) useU2X = false;
     #endif
 
@@ -237,8 +331,9 @@
 
   void MarlinSerial::checkRx(void) {
     if (TEST(M_UCSRxA, M_RXCx)) {
-      const uint8_t c = M_UDRx;
-      store_char(c);
+      CRITICAL_SECTION_START;
+        store_rxd_char();
+      CRITICAL_SECTION_END;
     }
   }
 
@@ -252,51 +347,81 @@
   int MarlinSerial::read(void) {
     int v;
     CRITICAL_SECTION_START;
-      const uint8_t t = rx_buffer.tail;
+      const ring_buffer_pos_t t = rx_buffer.tail;
       if (rx_buffer.head == t)
         v = -1;
       else {
         v = rx_buffer.buffer[t];
-        rx_buffer.tail = (uint8_t)(t + 1) & (RX_BUFFER_SIZE - 1);
+        rx_buffer.tail = (ring_buffer_pos_t)(t + 1) & (RX_BUFFER_SIZE - 1);
+
+        #if ENABLED(SERIAL_XON_XOFF)
+          if ((xon_xoff_state & XON_XOFF_CHAR_MASK) == XOFF_CHAR) {
+            // Get count of bytes in the RX buffer
+            ring_buffer_pos_t rx_count = (ring_buffer_pos_t)(rx_buffer.head - rx_buffer.tail) & (ring_buffer_pos_t)(RX_BUFFER_SIZE - 1);
+            // When below 10% of RX buffer capacity, send XON before
+            // running out of RX buffer bytes
+            if (rx_count < (RX_BUFFER_SIZE) / 10) {
+              xon_xoff_state = XON_CHAR | XON_XOFF_CHAR_SENT;
+              CRITICAL_SECTION_END;       // End critical section before returning!
+              writeNoHandshake(XON_CHAR);
+              return v;
+            }
+          }
+        #endif
       }
     CRITICAL_SECTION_END;
     return v;
   }
 
-  uint8_t MarlinSerial::available(void) {
+  ring_buffer_pos_t MarlinSerial::available(void) {
     CRITICAL_SECTION_START;
-      const uint8_t h = rx_buffer.head,
-                    t = rx_buffer.tail;
+      const ring_buffer_pos_t h = rx_buffer.head, t = rx_buffer.tail;
     CRITICAL_SECTION_END;
-    return (uint8_t)(RX_BUFFER_SIZE + h - t) & (RX_BUFFER_SIZE - 1);
+    return (ring_buffer_pos_t)(RX_BUFFER_SIZE + h - t) & (RX_BUFFER_SIZE - 1);
   }
 
   void MarlinSerial::flush(void) {
-    // RX
-    // don't reverse this or there may be problems if the RX interrupt
-    // occurs after reading the value of rx_buffer_head but before writing
-    // the value to rx_buffer_tail; the previous value of rx_buffer_head
-    // may be written to rx_buffer_tail, making it appear as if the buffer
-    // were full, not empty.
+    // Don't change this order of operations. If the RX interrupt occurs between
+    // reading rx_buffer_head and updating rx_buffer_tail, the previous rx_buffer_head
+    // may be written to rx_buffer_tail, making the buffer appear full rather than empty.
     CRITICAL_SECTION_START;
       rx_buffer.head = rx_buffer.tail;
     CRITICAL_SECTION_END;
+
+    #if ENABLED(SERIAL_XON_XOFF)
+      if ((xon_xoff_state & XON_XOFF_CHAR_MASK) == XOFF_CHAR) {
+        xon_xoff_state = XON_CHAR | XON_XOFF_CHAR_SENT;
+        writeNoHandshake(XON_CHAR);
+      }
+    #endif
   }
 
   #if TX_BUFFER_SIZE > 0
     uint8_t MarlinSerial::availableForWrite(void) {
       CRITICAL_SECTION_START;
-        const uint8_t h = tx_buffer.head,
-                      t = tx_buffer.tail;
+        const uint8_t h = tx_buffer.head, t = tx_buffer.tail;
       CRITICAL_SECTION_END;
       return (uint8_t)(TX_BUFFER_SIZE + h - t) & (TX_BUFFER_SIZE - 1);
     }
 
     void MarlinSerial::write(const uint8_t c) {
+      #if ENABLED(SERIAL_XON_XOFF)
+        const uint8_t state = xon_xoff_state;
+        if (!(state & XON_XOFF_CHAR_SENT)) {
+          // Send 2 chars: XON/XOFF, then a user-specified char
+          writeNoHandshake(state & XON_XOFF_CHAR_MASK);
+          xon_xoff_state = state | XON_XOFF_CHAR_SENT;
+        }
+      #endif
+      writeNoHandshake(c);
+    }
+
+    void MarlinSerial::writeNoHandshake(const uint8_t c) {
       _written = true;
       CRITICAL_SECTION_START;
         bool emty = (tx_buffer.head == tx_buffer.tail);
       CRITICAL_SECTION_END;
+
       // If the buffer and the data register is empty, just write the byte
       // to the data register and be done. This shortcut helps
       // significantly improve the effective datarate at high (>
@@ -353,20 +478,32 @@
       }
       // If we get here, nothing is queued anymore (DRIE is disabled) and
       // the hardware finished tranmission (TXC is set).
-  }
+    }
 
-  #else
-    void MarlinSerial::write(uint8_t c) {
-      while (!TEST(M_UCSRxA, M_UDREx))
-        ;
-      M_UDRx = c;
+  #else // TX_BUFFER_SIZE == 0
+
+    void MarlinSerial::write(const uint8_t c) {
+      #if ENABLED(SERIAL_XON_XOFF)
+        // Do a priority insertion of an XON/XOFF char, if needed.
+        const uint8_t state = xon_xoff_state;
+        if (!(state & XON_XOFF_CHAR_SENT)) {
+          writeNoHandshake(state & XON_XOFF_CHAR_MASK);
+          xon_xoff_state = state | XON_XOFF_CHAR_SENT;
+        }
+      #endif
+      writeNoHandshake(c);
     }
-  #endif
 
-  // end NEW
+    void MarlinSerial::writeNoHandshake(uint8_t c) {
+      while (!TEST(M_UCSRxA, M_UDREx)) {/* nada */}
+      M_UDRx = c;
+    }
 
-  /// imports from print.h
+  #endif // TX_BUFFER_SIZE == 0
 
+  /**
+   * Imports from print.h
+   */
 
   void MarlinSerial::print(char c, int base) {
     print((long)c, base);

Marlin/MarlinSerial.h

@@ -87,32 +87,29 @@
   #ifndef TX_BUFFER_SIZE
     #define TX_BUFFER_SIZE 32
   #endif
-  #if !((RX_BUFFER_SIZE == 256) ||(RX_BUFFER_SIZE == 128) ||(RX_BUFFER_SIZE == 64) ||(RX_BUFFER_SIZE == 32) ||(RX_BUFFER_SIZE == 16) ||(RX_BUFFER_SIZE == 8) ||(RX_BUFFER_SIZE == 4) ||(RX_BUFFER_SIZE == 2))
-    #error "RX_BUFFER_SIZE has to be a power of 2 and >= 2"
+
+  #if ENABLED(SERIAL_XON_XOFF) && RX_BUFFER_SIZE < 1024
+    #error "XON/XOFF requires RX_BUFFER_SIZE >= 1024 for reliable transfers without drops."
+  #endif
+  #if !IS_POWER_OF_2(RX_BUFFER_SIZE) || RX_BUFFER_SIZE < 2
+    #error "RX_BUFFER_SIZE must be a power of 2 greater than 1."
   #endif
-  #if !((TX_BUFFER_SIZE == 256) ||(TX_BUFFER_SIZE == 128) ||(TX_BUFFER_SIZE == 64) ||(TX_BUFFER_SIZE == 32) ||(TX_BUFFER_SIZE == 16) ||(TX_BUFFER_SIZE == 8) ||(TX_BUFFER_SIZE == 4) ||(TX_BUFFER_SIZE == 2) ||(TX_BUFFER_SIZE == 0))
-    #error TX_BUFFER_SIZE has to be a power of 2 or 0
+  #if TX_BUFFER_SIZE && (TX_BUFFER_SIZE < 2 || TX_BUFFER_SIZE > 256 || !IS_POWER_OF_2(TX_BUFFER_SIZE))
+    #error "TX_BUFFER_SIZE must be 0 or a power of 2 greater than 1."
   #endif
 
-  struct ring_buffer_r {
-    unsigned char buffer[RX_BUFFER_SIZE];
-    volatile uint8_t head;
-    volatile uint8_t tail;
-  };
+  #if RX_BUFFER_SIZE > 256
+    typedef uint16_t ring_buffer_pos_t;
+  #else
+    typedef uint8_t ring_buffer_pos_t;
+  #endif
 
-  #if TX_BUFFER_SIZE > 0
-    struct ring_buffer_t {
-      unsigned char buffer[TX_BUFFER_SIZE];
-      volatile uint8_t head;
-      volatile uint8_t tail;
-    };
+  #if ENABLED(SERIAL_STATS_DROPPED_RX)
+    extern uint8_t rx_dropped_bytes;
   #endif
 
-  #if UART_PRESENT(SERIAL_PORT)
-    extern ring_buffer_r rx_buffer;
-    #if TX_BUFFER_SIZE > 0
-      extern ring_buffer_t tx_buffer;
-    #endif
+  #if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
+    extern ring_buffer_pos_t rx_max_enqueued;
   #endif
 
   class MarlinSerial { //: public Stream
@@ -124,13 +121,22 @@
       static int peek(void);
       static int read(void);
       static void flush(void);
-      static uint8_t available(void);
+      static ring_buffer_pos_t available(void);
       static void checkRx(void);
       static void write(const uint8_t c);
       #if TX_BUFFER_SIZE > 0
         static uint8_t availableForWrite(void);
         static void flushTX(void);
       #endif
+      static void writeNoHandshake(const uint8_t c);
+
+      #if ENABLED(SERIAL_STATS_DROPPED_RX)
+        FORCE_INLINE static uint32_t dropped() { return rx_dropped_bytes; }
+      #endif
+
+      #if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
+        FORCE_INLINE static ring_buffer_pos_t rxMaxEnqueued() { return rx_max_enqueued; }
+      #endif
 
     private:
       static void printNumber(unsigned long, const uint8_t);

Marlin/Marlin_main.cpp

@@ -142,7 +142,7 @@
  * M140 - Set bed target temp. S<temp>
  * M145 - Set heatup values for materials on the LCD. H<hotend> B<bed> F<fan speed> for S<material> (0=PLA, 1=ABS)
  * M149 - Set temperature units. (Requires TEMPERATURE_UNITS_SUPPORT)
- * M150 - Set Status LED Color as R<red> U<green> B<blue>. Values 0-255. (Requires BLINKM, RGB_LED, RGBW_LED, or PCA9632)
+ * M150 - Set Status LED Color as R<red> U<green> B<blue> P<bright>. Values 0-255. (Requires BLINKM, RGB_LED, RGBW_LED, NEOPIXEL_LED, or PCA9632).
  * M155 - Auto-report temperatures with interval of S<seconds>. (Requires AUTO_REPORT_TEMPERATURES)
  * M163 - Set a single proportion for a mixing extruder. (Requires MIXING_EXTRUDER)
  * M164 - Save the mix as a virtual extruder. (Requires MIXING_EXTRUDER and MIXING_VIRTUAL_TOOLS)
@@ -283,7 +283,7 @@
   #include "Max7219_Debug_LEDs.h"
 #endif
 
-#if ENABLED(NEOPIXEL_RGBW_LED)
+#if ENABLED(NEOPIXEL_LED)
   #include <Adafruit_NeoPixel.h>
 #endif
 
@@ -349,6 +349,20 @@
                            || isnan(ubl.z_values[0][0]))
 #endif
 
+#if ENABLED(NEOPIXEL_LED) 
+  #if NEOPIXEL_TYPE == NEO_RGB || NEOPIXEL_TYPE == NEO_RBG || NEOPIXEL_TYPE == NEO_GRB || NEOPIXEL_TYPE == NEO_GBR || NEOPIXEL_TYPE == NEO_BRG || NEOPIXEL_TYPE == NEO_BGR
+    #define NEO_WHITE 255, 255, 255
+  #else
+    #define NEO_WHITE 0, 0, 0, 255
+  #endif
+#endif
+
+#if ENABLED(RGB_LED) || ENABLED(BLINKM) || ENABLED(PCA9632)
+  #define LED_WHITE 255, 255, 255
+#elif ENABLED(RGBW_LED)
+  #define LED_WHITE 0, 0, 0, 255
+#endif
+
 bool Running = true;
 
 uint8_t marlin_debug_flags = DEBUG_NONE;
@@ -596,7 +610,7 @@ static uint8_t target_extruder;
 
   // Initialized by settings.load()
   float delta_radius,
-        delta_tower_angle_trim[2],
+        delta_tower_angle_trim[ABC],
         delta_tower[ABC][2],
         delta_diagonal_rod,
         delta_calibration_radius,
@@ -978,9 +992,9 @@ void servo_init() {
 
 #if HAS_COLOR_LEDS
 
-  #if ENABLED(NEOPIXEL_RGBW_LED)
+  #if ENABLED(NEOPIXEL_LED)
 
-    Adafruit_NeoPixel pixels(NEOPIXEL_PIXELS, NEOPIXEL_PIN, NEO_GRBW + NEO_KHZ800);
+    Adafruit_NeoPixel pixels(NEOPIXEL_PIXELS, NEOPIXEL_PIN, NEOPIXEL_TYPE + NEO_KHZ800);
 
     void set_neopixel_color(const uint32_t color) {
       for (uint16_t i = 0; i < pixels.numPixels(); ++i)
@@ -989,7 +1003,7 @@ void servo_init() {
     }
 
     void setup_neopixel() {
-      pixels.setBrightness(255); // 0 - 255 range
+      pixels.setBrightness(NEOPIXEL_BRIGHTNESS); // 0 - 255 range
       pixels.begin();
       pixels.show(); // initialize to all off
 
@@ -1002,26 +1016,28 @@ void servo_init() {
         set_neopixel_color(pixels.Color(0, 0, 255, 0));  // blue
         delay(2000);
       #endif
-      set_neopixel_color(pixels.Color(0, 0, 0, 255));    // white
+      set_neopixel_color(pixels.Color(NEO_WHITE));       // white
     }
 
-  #endif // NEOPIXEL_RGBW_LED
+  #endif // NEOPIXEL_LED
 
   void set_led_color(
     const uint8_t r, const uint8_t g, const uint8_t b
-      #if ENABLED(RGBW_LED) || ENABLED(NEOPIXEL_RGBW_LED)
+      #if ENABLED(RGBW_LED) || ENABLED(NEOPIXEL_LED)
         , const uint8_t w = 0
-        #if ENABLED(NEOPIXEL_RGBW_LED)
+        #if ENABLED(NEOPIXEL_LED)
+          , const uint8_t p = NEOPIXEL_BRIGHTNESS
           , bool isSequence = false
         #endif
       #endif
   ) {
 
-    #if ENABLED(NEOPIXEL_RGBW_LED)
+    #if ENABLED(NEOPIXEL_LED)
 
       const uint32_t color = pixels.Color(r, g, b, w);
       static uint16_t nextLed = 0;
 
+      pixels.setBrightness(p);
       if (!isSequence)
         set_neopixel_color(color);
       else {
@@ -1098,9 +1114,10 @@ inline void get_serial_commands() {
   /**
    * Loop while serial characters are incoming and the queue is not full
    */
-  while (commands_in_queue < BUFSIZE && MYSERIAL.available() > 0) {
+  int c;
+  while (commands_in_queue < BUFSIZE && (c = MYSERIAL.read()) >= 0) {
 
-    char serial_char = MYSERIAL.read();
+    char serial_char = c;
 
     /**
      * If the character ends the line
@@ -1200,9 +1217,9 @@ inline void get_serial_commands() {
       // The command will be injected when EOL is reached
     }
     else if (serial_char == '\\') {  // Handle escapes
-      if (MYSERIAL.available() > 0) {
+      if ((c = MYSERIAL.read()) >= 0) {
         // if we have one more character, copy it over
-        serial_char = MYSERIAL.read();
+        serial_char = c;
         if (!serial_comment_mode) serial_line_buffer[serial_count++] = serial_char;
       }
       // otherwise do nothing
@@ -1822,7 +1839,7 @@ static void clean_up_after_endstop_or_probe_move() {
 
 #endif // HAS_BED_PROBE
 
-#if HAS_PROBING_PROCEDURE || HOTENDS > 1 || ENABLED(Z_PROBE_ALLEN_KEY) || ENABLED(Z_PROBE_SLED) || ENABLED(NOZZLE_CLEAN_FEATURE) || ENABLED(NOZZLE_PARK_FEATURE) || ENABLED(DELTA_AUTO_CALIBRATION)
+#if HAS_AXIS_UNHOMED_ERR
 
   bool axis_unhomed_error(const bool x/*=true*/, const bool y/*=true*/, const bool z/*=true*/) {
     #if ENABLED(HOME_AFTER_DEACTIVATE)
@@ -1850,7 +1867,7 @@ static void clean_up_after_endstop_or_probe_move() {
     return false;
   }
 
-#endif
+#endif // HAS_AXIS_UNHOMED_ERR
 
 #if ENABLED(Z_PROBE_SLED)
 
@@ -2053,7 +2070,7 @@ static void clean_up_after_endstop_or_probe_move() {
     #endif
   }
 
-#endif
+#endif // Z_PROBE_ALLEN_KEY
 
 #if ENABLED(PROBING_FANS_OFF)
 
@@ -3093,7 +3110,7 @@ static void homeaxis(const AxisEnum axis) {
       #if ENABLED(DEBUG_LEVELING_FEATURE)
         if (DEBUGGING(LEVELING)) SERIAL_ECHOLNPGM("endstop_adj:");
       #endif
-      do_homing_move(axis, endstop_adj[axis] - 0.1);
+      do_homing_move(axis, endstop_adj[axis] - 0.1 * Z_HOME_DIR);
     }
 
   #else
@@ -3193,6 +3210,8 @@ static void homeaxis(const AxisEnum axis) {
     // The current position will be the destination for E and Z moves
     set_destination_to_current();
 
+    stepper.synchronize(); // Wait for all moves to finish
+
     if (retracting) {
       // Remember the Z height since G-code may include its own Z-hop
       // For best results turn off Z hop if G-code already includes it
@@ -3381,6 +3400,10 @@ inline void gcode_G0_G1(
     bool fast_move=false
   #endif
 ) {
+  #if ENABLED(NO_MOTION_BEFORE_HOMING)
+    if (axis_unhomed_error()) return;
+  #endif
+
   if (IsRunning()) {
     gcode_get_destination(); // For X Y Z E F
 
@@ -3436,6 +3459,10 @@ inline void gcode_G0_G1(
 #if ENABLED(ARC_SUPPORT)
 
   inline void gcode_G2_G3(bool clockwise) {
+    #if ENABLED(NO_MOTION_BEFORE_HOMING)
+      if (axis_unhomed_error()) return;
+    #endif
+
     if (IsRunning()) {
 
       #if ENABLED(SF_ARC_FIX)
@@ -3533,8 +3560,20 @@ inline void gcode_G4() {
    * G5: Cubic B-spline
    */
   inline void gcode_G5() {
+    #if ENABLED(NO_MOTION_BEFORE_HOMING)
+      if (axis_unhomed_error()) return;
+    #endif
+
     if (IsRunning()) {
 
+      #if ENABLED(CNC_WORKSPACE_PLANES)
+        if (workspace_plane != PLANE_XY) {
+          SERIAL_ERROR_START();
+          SERIAL_ERRORLNPGM(MSG_ERR_BAD_PLANE_MODE);
+          return;
+        }
+      #endif
+
       gcode_get_destination();
 
       const float offset[] = {
@@ -5325,6 +5364,7 @@ void home_all_axes() { gcode_G28(true); }
      *
      *   Pn  Number of probe points:
      *
+     *      P0     No probe. Normalize only.
      *      P1     Probe center and set height only.
      *      P2     Probe center and towers. Set height, endstops, and delta radius.
      *      P3     Probe all positions: center, towers and opposite towers. Set all.
@@ -5353,7 +5393,7 @@ void home_all_axes() { gcode_G28(true); }
       SERIAL_PROTOCOL_F(f, 2);
     }
 
-    inline void print_G33_settings(const bool end_stops, const bool tower_angles){ // TODO echo these to LCD ???
+    void print_G33_settings(const bool end_stops, const bool tower_angles) {
       SERIAL_PROTOCOLPAIR(".Height:", DELTA_HEIGHT + home_offset[Z_AXIS]);
       if (end_stops) {
         print_signed_float(PSTR("  Ex"), endstop_adj[A_AXIS]);
@@ -5366,7 +5406,8 @@ void home_all_axes() { gcode_G28(true); }
         SERIAL_PROTOCOLPGM(".Tower angle :  ");
         print_signed_float(PSTR("Tx"), delta_tower_angle_trim[A_AXIS]);
         print_signed_float(PSTR("Ty"), delta_tower_angle_trim[B_AXIS]);
-        SERIAL_PROTOCOLLNPGM("  Tz:+0.00");
+        print_signed_float(PSTR("Tz"), delta_tower_angle_trim[C_AXIS]);
+        SERIAL_EOL();
       }
     }
 
@@ -5388,8 +5429,8 @@ void home_all_axes() { gcode_G28(true); }
     inline void gcode_G33() {
 
       const int8_t probe_points = parser.intval('P', DELTA_CALIBRATION_DEFAULT_POINTS);
-      if (!WITHIN(probe_points, 1, 7)) {
-        SERIAL_PROTOCOLLNPGM("?(P)oints is implausible (1-7).");
+      if (!WITHIN(probe_points, 0, 7)) {
+        SERIAL_PROTOCOLLNPGM("?(P)oints is implausible (0-7).");
         return;
       }
 
@@ -5413,11 +5454,12 @@ void home_all_axes() { gcode_G28(true); }
 
       const bool towers_set           = parser.boolval('T', true),
                  stow_after_each      = parser.boolval('E'),
+                 _0p_calibration      = probe_points == 0,
                  _1p_calibration      = probe_points == 1,
                  _4p_calibration      = probe_points == 2,
                  _4p_towers_points    = _4p_calibration && towers_set,
                  _4p_opposite_points  = _4p_calibration && !towers_set,
-                 _7p_calibration      = probe_points >= 3,
+                 _7p_calibration      = probe_points >= 3 || _0p_calibration,
                  _7p_half_circle      = probe_points == 3,
                  _7p_double_circle    = probe_points == 5,
                  _7p_triple_circle    = probe_points == 6,
@@ -5432,17 +5474,20 @@ void home_all_axes() { gcode_G28(true); }
             zero_std_dev = (verbose_level ? 999.0 : 0.0), // 0.0 in dry-run mode : forced end
             zero_std_dev_old = zero_std_dev,
             zero_std_dev_min = zero_std_dev,
-            e_old[XYZ] = {
+            e_old[ABC] = {
               endstop_adj[A_AXIS],
               endstop_adj[B_AXIS],
               endstop_adj[C_AXIS]
             },
             dr_old = delta_radius,
             zh_old = home_offset[Z_AXIS],
-            alpha_old = delta_tower_angle_trim[A_AXIS],
-            beta_old = delta_tower_angle_trim[B_AXIS];
+            ta_old[ABC] = {
+              delta_tower_angle_trim[A_AXIS],
+              delta_tower_angle_trim[B_AXIS],
+              delta_tower_angle_trim[C_AXIS]
+            };
 
-      if (!_1p_calibration) {  // test if the outer radius is reachable
+      if (!_1p_calibration && !_0p_calibration) {  // test if the outer radius is reachable
         const float circles = (_7p_quadruple_circle ? 1.5 :
                                _7p_triple_circle    ? 1.0 :
                                _7p_double_circle    ? 0.5 : 0),
@@ -5472,9 +5517,11 @@ void home_all_axes() { gcode_G28(true); }
 
       setup_for_endstop_or_probe_move();
       endstops.enable(true);
-      if (!home_delta())
-        return;
-      endstops.not_homing();
+      if (!_0p_calibration) {
+        if (!home_delta())
+          return;
+        endstops.not_homing();
+      }
 
       // print settings
 
@@ -5486,69 +5533,64 @@ void home_all_axes() { gcode_G28(true); }
 
       print_G33_settings(!_1p_calibration, _7p_calibration && towers_set);
 
-      #if DISABLED(PROBE_MANUALLY)
-        const float measured_z = probe_pt(dx, dy, stow_after_each, 1, false); // 1st probe to set height
-        if (isnan(measured_z)) return G33_CLEANUP();
-        home_offset[Z_AXIS] -= measured_z;
-      #endif
-
       do {
 
         float z_at_pt[13] = { 0.0 };
 
         test_precision = zero_std_dev_old != 999.0 ? (zero_std_dev + zero_std_dev_old) / 2 : zero_std_dev;
-
         iterations++;
 
         // Probe the points
 
-        if (!_7p_half_circle && !_7p_triple_circle) { // probe the center
-          #if ENABLED(PROBE_MANUALLY)
-            z_at_pt[0] += lcd_probe_pt(0, 0);
-          #else
-            z_at_pt[0] += probe_pt(dx, dy, stow_after_each, 1, false);
-            if (isnan(z_at_pt[0])) return G33_CLEANUP();
-          #endif
-        }
-        if (_7p_calibration) { // probe extra center points
-          for (int8_t axis = _7p_multi_circle ? 11 : 9; axis > 0; axis -= _7p_multi_circle ? 2 : 4) {
-            const float a = RADIANS(180 + 30 * axis), r = delta_calibration_radius * 0.1;
+        if (!_0p_calibration){
+          if (!_7p_half_circle && !_7p_triple_circle) { // probe the center
             #if ENABLED(PROBE_MANUALLY)
-              z_at_pt[0] += lcd_probe_pt(cos(a) * r, sin(a) * r);
+              z_at_pt[0] += lcd_probe_pt(0, 0);
             #else
-              z_at_pt[0] += probe_pt(cos(a) * r + dx, sin(a) * r + dy, stow_after_each, 1);
+              z_at_pt[0] += probe_pt(dx, dy, stow_after_each, 1, false);
               if (isnan(z_at_pt[0])) return G33_CLEANUP();
             #endif
           }
-          z_at_pt[0] /= float(_7p_double_circle ? 7 : probe_points);
-        }
-        if (!_1p_calibration) {  // probe the radius
-          bool zig_zag = true;
-          const uint8_t start = _4p_opposite_points ? 3 : 1,
-                         step = _4p_calibration ? 4 : _7p_half_circle ? 2 : 1;
-          for (uint8_t axis = start; axis < 13; axis += step) {
-            const float zigadd = (zig_zag ? 0.5 : 0.0),
-                        offset_circles = _7p_quadruple_circle ? zigadd + 1.0 :
-                                         _7p_triple_circle    ? zigadd + 0.5 :
-                                         _7p_double_circle    ? zigadd : 0;
-            for (float circles = -offset_circles ; circles <= offset_circles; circles++) {
-              const float a = RADIANS(180 + 30 * axis),
-                          r = delta_calibration_radius * (1 + circles * (zig_zag ? 0.1 : -0.1));
+          if (_7p_calibration) { // probe extra center points
+            for (int8_t axis = _7p_multi_circle ? 11 : 9; axis > 0; axis -= _7p_multi_circle ? 2 : 4) {
+              const float a = RADIANS(180 + 30 * axis), r = delta_calibration_radius * 0.1;
               #if ENABLED(PROBE_MANUALLY)
-                z_at_pt[axis] += lcd_probe_pt(cos(a) * r, sin(a) * r);
+                z_at_pt[0] += lcd_probe_pt(cos(a) * r, sin(a) * r);
               #else
-                z_at_pt[axis] += probe_pt(cos(a) * r + dx, sin(a) * r + dy, stow_after_each, 1);
-                if (isnan(z_at_pt[axis])) return G33_CLEANUP();
+                z_at_pt[0] += probe_pt(cos(a) * r + dx, sin(a) * r + dy, stow_after_each, 1);
+                if (isnan(z_at_pt[0])) return G33_CLEANUP();
               #endif
             }
-            zig_zag = !zig_zag;
-            z_at_pt[axis] /= (2 * offset_circles + 1);
+            z_at_pt[0] /= float(_7p_double_circle ? 7 : probe_points);
           }
-        }
-        if (_7p_intermed_points) // average intermediates to tower and opposites
-          for (uint8_t axis = 1; axis < 13; axis += 2)
-            z_at_pt[axis] = (z_at_pt[axis] + (z_at_pt[axis + 1] + z_at_pt[(axis + 10) % 12 + 1]) / 2.0) / 2.0;
+          if (!_1p_calibration) {  // probe the radius
+            bool zig_zag = true;
+            const uint8_t start = _4p_opposite_points ? 3 : 1,
+                           step = _4p_calibration ? 4 : _7p_half_circle ? 2 : 1;
+            for (uint8_t axis = start; axis < 13; axis += step) {
+              const float zigadd = (zig_zag ? 0.5 : 0.0),
+                          offset_circles = _7p_quadruple_circle ? zigadd + 1.0 :
+                                           _7p_triple_circle    ? zigadd + 0.5 :
+                                           _7p_double_circle    ? zigadd : 0;
+              for (float circles = -offset_circles ; circles <= offset_circles; circles++) {
+                const float a = RADIANS(180 + 30 * axis),
+                            r = delta_calibration_radius * (1 + circles * (zig_zag ? 0.1 : -0.1));
+                #if ENABLED(PROBE_MANUALLY)
+                  z_at_pt[axis] += lcd_probe_pt(cos(a) * r, sin(a) * r);
+                #else
+                  z_at_pt[axis] += probe_pt(cos(a) * r + dx, sin(a) * r + dy, stow_after_each, 1);
+                  if (isnan(z_at_pt[axis])) return G33_CLEANUP();
+                #endif
+              }
+              zig_zag = !zig_zag;
+              z_at_pt[axis] /= (2 * offset_circles + 1);
+            }
+          }
+          if (_7p_intermed_points) // average intermediates to tower and opposites
+            for (uint8_t axis = 1; axis < 13; axis += 2)
+              z_at_pt[axis] = (z_at_pt[axis] + (z_at_pt[axis + 1] + z_at_pt[(axis + 10) % 12 + 1]) / 2.0) / 2.0;
 
+        }
         float S1 = z_at_pt[0],
               S2 = sq(z_at_pt[0]);
         int16_t N = 1;
@@ -5559,96 +5601,104 @@ void home_all_axes() { gcode_G28(true); }
             N++;
           }
         zero_std_dev_old = zero_std_dev;
-        zero_std_dev = round(sqrt(S2 / N) * 1000.0) / 1000.0 + 0.00001;
+        zero_std_dev = round(SQRT(S2 / N) * 1000.0) / 1000.0 + 0.00001;
 
         // Solve matrices
 
-        if ((zero_std_dev < test_precision && zero_std_dev > calibration_precision) || iterations <= force_iterations) {
+        if ((zero_std_dev < test_precision || iterations <= force_iterations) && zero_std_dev > calibration_precision) {
           if (zero_std_dev < zero_std_dev_min) {
             COPY(e_old, endstop_adj);
             dr_old = delta_radius;
             zh_old = home_offset[Z_AXIS];
-            alpha_old = delta_tower_angle_trim[A_AXIS];
-            beta_old = delta_tower_angle_trim[B_AXIS];
+            COPY(ta_old, delta_tower_angle_trim);
           }
 
-          float e_delta[XYZ] = { 0.0 }, r_delta = 0.0, t_alpha = 0.0, t_beta = 0.0;
+          float e_delta[ABC] = { 0.0 }, r_delta = 0.0, t_delta[ABC] = { 0.0 };
+
           const float r_diff = delta_radius - delta_calibration_radius,
-                      h_factor = 1.00 + r_diff * 0.001,                          //1.02 for r_diff = 20mm
-                      r_factor = -(1.75 + 0.005 * r_diff + 0.001 * sq(r_diff)),  //2.25 for r_diff = 20mm
-                      a_factor = 100.0 / delta_calibration_radius;               //1.25 for cal_rd = 80mm
+                      h_factor = (1.00 + r_diff * 0.001) / 6.0,                                       // 1.02 for r_diff = 20mm
+                      r_factor = (-(1.75 + 0.005 * r_diff + 0.001 * sq(r_diff))) / 6.0,               // 2.25 for r_diff = 20mm
+                      a_factor = (66.66 / delta_calibration_radius) / (iterations == 1 ? 16.0 : 2.0); // 0.83 for cal_rd = 80mm  (Slow down on 1st iteration)
 
           #define ZP(N,I) ((N) * z_at_pt[I])
-          #define Z1000(I) ZP(1.00, I)
-          #define Z1050(I) ZP(h_factor, I)
-          #define Z0700(I) ZP(h_factor * 2.0 / 3.00, I)
-          #define Z0350(I) ZP(h_factor / 3.00, I)
-          #define Z0175(I) ZP(h_factor / 6.00, I)
-          #define Z2250(I) ZP(r_factor, I)
-          #define Z0750(I) ZP(r_factor / 3.00, I)
-          #define Z0375(I) ZP(r_factor / 6.00, I)
-          #define Z0444(I) ZP(a_factor * 4.0 / 9.0, I)
-          #define Z0888(I) ZP(a_factor * 8.0 / 9.0, I)
+          #define Z6(I) ZP(6, I)
+          #define Z4(I) ZP(4, I)
+          #define Z2(I) ZP(2, I)
+          #define Z1(I) ZP(1, I)
 
           #if ENABLED(PROBE_MANUALLY)
             test_precision = 0.00; // forced end
           #endif
 
           switch (probe_points) {
+            case 0:
+              #if DISABLED(PROBE_MANUALLY)
+                test_precision = 0.00; // forced end
+              #endif
+              break;
+
             case 1:
-              test_precision = 0.00; // forced end
-              LOOP_XYZ(i) e_delta[i] = Z1000(0);
+              #if DISABLED(PROBE_MANUALLY)
+                test_precision = 0.00; // forced end
+              #endif
+              LOOP_XYZ(axis) e_delta[axis] = Z1(0);
               break;
 
             case 2:
               if (towers_set) {
-                e_delta[X_AXIS] = Z1050(0) + Z0700(1) - Z0350(5) - Z0350(9);
-                e_delta[Y_AXIS] = Z1050(0) - Z0350(1) + Z0700(5) - Z0350(9);
-                e_delta[Z_AXIS] = Z1050(0) - Z0350(1) - Z0350(5) + Z0700(9);
-                r_delta         = Z2250(0) - Z0750(1) - Z0750(5) - Z0750(9);
+                e_delta[A_AXIS] = (Z6(0) + Z4(1) - Z2(5) - Z2(9)) * h_factor;
+                e_delta[B_AXIS] = (Z6(0) - Z2(1) + Z4(5) - Z2(9)) * h_factor;
+                e_delta[C_AXIS] = (Z6(0) - Z2(1) - Z2(5) + Z4(9)) * h_factor;
+                r_delta         = (Z6(0) - Z2(1) - Z2(5) - Z2(9)) * r_factor;
               }
               else {
-                e_delta[X_AXIS] = Z1050(0) - Z0700(7) + Z0350(11) + Z0350(3);
-                e_delta[Y_AXIS] = Z1050(0) + Z0350(7) - Z0700(11) + Z0350(3);
-                e_delta[Z_AXIS] = Z1050(0) + Z0350(7) + Z0350(11) - Z0700(3);
-                r_delta         = Z2250(0) - Z0750(7) - Z0750(11) - Z0750(3);
+                e_delta[A_AXIS] = (Z6(0) - Z4(7) + Z2(11) + Z2(3)) * h_factor;
+                e_delta[B_AXIS] = (Z6(0) + Z2(7) - Z4(11) + Z2(3)) * h_factor;
+                e_delta[C_AXIS] = (Z6(0) + Z2(7) + Z2(11) - Z4(3)) * h_factor;
+                r_delta         = (Z6(0) - Z2(7) - Z2(11) - Z2(3)) * r_factor;
               }
               break;
 
             default:
-              e_delta[X_AXIS] = Z1050(0) + Z0350(1) - Z0175(5) - Z0175(9) - Z0350(7) + Z0175(11) + Z0175(3);
-              e_delta[Y_AXIS] = Z1050(0) - Z0175(1) + Z0350(5) - Z0175(9) + Z0175(7) - Z0350(11) + Z0175(3);
-              e_delta[Z_AXIS] = Z1050(0) - Z0175(1) - Z0175(5) + Z0350(9) + Z0175(7) + Z0175(11) - Z0350(3);
-              r_delta         = Z2250(0) - Z0375(1) - Z0375(5) - Z0375(9) - Z0375(7) - Z0375(11) - Z0375(3);
+              e_delta[A_AXIS] = (Z6(0) + Z2(1) - Z1(5) - Z1(9) - Z2(7) + Z1(11) + Z1(3)) * h_factor;
+              e_delta[B_AXIS] = (Z6(0) - Z1(1) + Z2(5) - Z1(9) + Z1(7) - Z2(11) + Z1(3)) * h_factor;
+              e_delta[C_AXIS] = (Z6(0) - Z1(1) - Z1(5) + Z2(9) + Z1(7) + Z1(11) - Z2(3)) * h_factor;
+              r_delta         = (Z6(0) - Z1(1) - Z1(5) - Z1(9) - Z1(7) - Z1(11) - Z1(3)) * r_factor;
 
               if (towers_set) {
-                t_alpha = Z0444(1) - Z0888(5) + Z0444(9) + Z0444(7) - Z0888(11) + Z0444(3);
-                t_beta  = Z0888(1) - Z0444(5) - Z0444(9) + Z0888(7) - Z0444(11) - Z0444(3);
+                t_delta[A_AXIS] = (       - Z2(5) + Z2(9)         - Z2(11) + Z2(3)) * a_factor;
+                t_delta[B_AXIS] = ( Z2(1)         - Z2(9) + Z2(7)          - Z2(3)) * a_factor;
+                t_delta[C_AXIS] = (-Z2(1) + Z2(5)         - Z2(7) + Z2(11)        ) * a_factor;
+                e_delta[A_AXIS] += (t_delta[B_AXIS] - t_delta[C_AXIS]) / 4.5;
+                e_delta[B_AXIS] += (t_delta[C_AXIS] - t_delta[A_AXIS]) / 4.5;
+                e_delta[C_AXIS] += (t_delta[A_AXIS] - t_delta[B_AXIS]) / 4.5;
               }
               break;
           }
 
           LOOP_XYZ(axis) endstop_adj[axis] += e_delta[axis];
           delta_radius += r_delta;
-          delta_tower_angle_trim[A_AXIS] += t_alpha;
-          delta_tower_angle_trim[B_AXIS] += t_beta;
-
-          // adjust delta_height and endstops by the max amount
-          const float z_temp = MAX3(endstop_adj[A_AXIS], endstop_adj[B_AXIS], endstop_adj[C_AXIS]);
-          home_offset[Z_AXIS] -= z_temp;
-          LOOP_XYZ(i) endstop_adj[i] -= z_temp;
-
-          recalc_delta_settings(delta_radius, delta_diagonal_rod);
+          LOOP_XYZ(axis) delta_tower_angle_trim[axis] += t_delta[axis];
         }
         else if (zero_std_dev >= test_precision) {   // step one back
           COPY(endstop_adj, e_old);
           delta_radius = dr_old;
           home_offset[Z_AXIS] = zh_old;
-          delta_tower_angle_trim[A_AXIS] = alpha_old;
-          delta_tower_angle_trim[B_AXIS] = beta_old;
+          COPY(delta_tower_angle_trim, ta_old);
+        }
 
-          recalc_delta_settings(delta_radius, delta_diagonal_rod);
+        if (verbose_level != 0) {                                    // !dry run
+          // normalise angles to least squares
+          float a_sum = 0.0;
+          LOOP_XYZ(axis) a_sum += delta_tower_angle_trim[axis];
+          LOOP_XYZ(axis) delta_tower_angle_trim[axis] -= a_sum / 3.0;
+
+          // adjust delta_height and endstops by the max amount
+          const float z_temp = MAX3(endstop_adj[A_AXIS], endstop_adj[B_AXIS], endstop_adj[C_AXIS]);
+          home_offset[Z_AXIS] -= z_temp;
+          LOOP_XYZ(axis) endstop_adj[axis] -= z_temp;
         }
+        recalc_delta_settings(delta_radius, delta_diagonal_rod, delta_tower_angle_trim);
         NOMORE(zero_std_dev_min, zero_std_dev);
 
         // print report
@@ -5674,7 +5724,7 @@ void home_all_axes() { gcode_G28(true); }
           }
         }
         if (verbose_level != 0) {                                    // !dry run
-          if ((zero_std_dev >= test_precision || zero_std_dev <= calibration_precision) && iterations > force_iterations) {  // end iterations
+          if ((zero_std_dev >= test_precision && iterations > force_iterations) || zero_std_dev <= calibration_precision) {  // end iterations
             SERIAL_PROTOCOLPGM("Calibration OK");
             SERIAL_PROTOCOL_SP(36);
             #if DISABLED(PROBE_MANUALLY)
@@ -5736,7 +5786,7 @@ void home_all_axes() { gcode_G28(true); }
         endstops.not_homing();
 
       }
-      while ((zero_std_dev < test_precision && zero_std_dev > calibration_precision && iterations < 31) || iterations <= force_iterations);
+      while (((zero_std_dev < test_precision && iterations < 31) || iterations <= force_iterations) && zero_std_dev > calibration_precision);
 
       G33_CLEANUP();
     }
@@ -5842,6 +5892,10 @@ void home_all_axes() { gcode_G28(true); }
    * G42: Move X & Y axes to mesh coordinates (I & J)
    */
   inline void gcode_G42() {
+    #if ENABLED(NO_MOTION_BEFORE_HOMING)
+      if (axis_unhomed_error()) return;
+    #endif
+
     if (IsRunning()) {
       const bool hasI = parser.seenval('I');
       const int8_t ix = hasI ? parser.value_int() : 0;
@@ -6333,6 +6387,8 @@ inline void gcode_M17() {
       filament_change_beep(max_beep_count, true);
     #endif
 
+    set_destination_to_current();
+
     if (load_length != 0) {
       #if ENABLED(ULTIPANEL)
         // Show "insert filament"
@@ -7550,9 +7606,13 @@ inline void gcode_M109() {
         if (blue != old_blue) {
           old_blue = blue;
           set_led_color(255, 0, blue
-            #if ENABLED(NEOPIXEL_RGBW_LED)
-              , 0, true
+          #if ENABLED(NEOPIXEL_LED)
+            , 0
+            , pixels.getBrightness()
+            #if ENABLED(NEOPIXEL_IS_SEQUENTIAL)
+              , true
             #endif
+          #endif
           );
         }
       }
@@ -7589,10 +7649,11 @@ inline void gcode_M109() {
   if (wait_for_heatup) {
     LCD_MESSAGEPGM(MSG_HEATING_COMPLETE);
     #if ENABLED(PRINTER_EVENT_LEDS)
-      #if ENABLED(RGBW_LED) || ENABLED(NEOPIXEL_RGBW_LED)
-        set_led_color(0, 0, 0, 255);  // Turn on the WHITE LED
-      #else
-        set_led_color(255, 255, 255); // Set LEDs All On
+      #if ENABLED(RGB_LED) || ENABLED(BLINKM) || ENABLED(PCA9632) || ENABLED(RGBW_LED)
+        set_led_color(LED_WHITE);
+      #endif
+      #if ENABLED(NEOPIXEL_LED)
+        set_neopixel_color(pixels.Color(NEO_WHITE));
       #endif
     #endif
   }
@@ -7690,8 +7751,11 @@ inline void gcode_M109() {
           if (red != old_red) {
             old_red = red;
             set_led_color(red, 0, 255
-              #if ENABLED(NEOPIXEL_RGBW_LED)
-                , 0, true
+              #if ENABLED(NEOPIXEL_LED)
+                , 0, pixels.getBrightness()
+                #if ENABLED(NEOPIXEL_IS_SEQUENTIAL)
+                  , true
+                #endif
               #endif
             );
           }
@@ -7745,16 +7809,17 @@ inline void gcode_M110() {
  * M111: Set the debug level
  */
 inline void gcode_M111() {
-  marlin_debug_flags = parser.byteval('S', (uint8_t)DEBUG_NONE);
-
-  const static char str_debug_1[] PROGMEM = MSG_DEBUG_ECHO;
-  const static char str_debug_2[] PROGMEM = MSG_DEBUG_INFO;
-  const static char str_debug_4[] PROGMEM = MSG_DEBUG_ERRORS;
-  const static char str_debug_8[] PROGMEM = MSG_DEBUG_DRYRUN;
-  const static char str_debug_16[] PROGMEM = MSG_DEBUG_COMMUNICATION;
-  #if ENABLED(DEBUG_LEVELING_FEATURE)
-    const static char str_debug_32[] PROGMEM = MSG_DEBUG_LEVELING;
-  #endif
+  if (parser.seen('S')) marlin_debug_flags = parser.byteval('S');
+
+  const static char str_debug_1[] PROGMEM = MSG_DEBUG_ECHO,
+                    str_debug_2[] PROGMEM = MSG_DEBUG_INFO,
+                    str_debug_4[] PROGMEM = MSG_DEBUG_ERRORS,
+                    str_debug_8[] PROGMEM = MSG_DEBUG_DRYRUN,
+                    str_debug_16[] PROGMEM = MSG_DEBUG_COMMUNICATION
+                    #if ENABLED(DEBUG_LEVELING_FEATURE)
+                      , str_debug_32[] PROGMEM = MSG_DEBUG_LEVELING
+                    #endif
+                    ;
 
   const static char* const debug_strings[] PROGMEM = {
     str_debug_1, str_debug_2, str_debug_4, str_debug_8, str_debug_16
@@ -8337,8 +8402,10 @@ inline void gcode_M121() { endstops.enable_globally(false); }
 
   /**
    * M150: Set Status LED Color - Use R-U-B-W for R-G-B-W
+   *       and Brightness       - Use P (for NEOPIXEL only)
    *
    * Always sets all 3 or 4 components. If a component is left out, set to 0.
+   *                                    If brightness is left out, no value changed
    *
    * Examples:
    *
@@ -8347,15 +8414,19 @@ inline void gcode_M121() { endstops.enable_globally(false); }
    *   M150            ; Turn LED off
    *   M150 R U B      ; Turn LED white
    *   M150 W          ; Turn LED white using a white LED
-   *
+   *   M150 P127       ; Set LED 50% brightness
+   *   M150 P          ; Set LED full brightness
    */
   inline void gcode_M150() {
     set_led_color(
       parser.seen('R') ? (parser.has_value() ? parser.value_byte() : 255) : 0,
       parser.seen('U') ? (parser.has_value() ? parser.value_byte() : 255) : 0,
       parser.seen('B') ? (parser.has_value() ? parser.value_byte() : 255) : 0
-      #if ENABLED(RGBW_LED) || ENABLED(NEOPIXEL_RGBW_LED)
+      #if ENABLED(RGBW_LED) || ENABLED(NEOPIXEL_LED)
         , parser.seen('W') ? (parser.has_value() ? parser.value_byte() : 255) : 0
+        #if ENABLED(NEOPIXEL_LED)
+          , parser.seen('P') ? (parser.has_value() ? parser.value_byte() : 255) : pixels.getBrightness()
+        #endif
       #endif
     );
   }
@@ -8529,11 +8600,8 @@ inline void gcode_M205() {
     if (parser.seen('B')) delta_calibration_radius       = parser.value_float();
     if (parser.seen('X')) delta_tower_angle_trim[A_AXIS] = parser.value_float();
     if (parser.seen('Y')) delta_tower_angle_trim[B_AXIS] = parser.value_float();
-    if (parser.seen('Z')) { // rotate all 3 axis for Z = 0
-      delta_tower_angle_trim[A_AXIS] -= parser.value_float();
-      delta_tower_angle_trim[B_AXIS] -= parser.value_float();
-    }
-    recalc_delta_settings(delta_radius, delta_diagonal_rod);
+    if (parser.seen('Z')) delta_tower_angle_trim[C_AXIS] = parser.value_float();
+    recalc_delta_settings(delta_radius, delta_diagonal_rod, delta_tower_angle_trim);
   }
   /**
    * M666: Set delta endstop adjustment
@@ -8546,7 +8614,8 @@ inline void gcode_M205() {
     #endif
     LOOP_XYZ(i) {
       if (parser.seen(axis_codes[i])) {
-        endstop_adj[i] = parser.value_linear_units();
+        if (parser.value_linear_units() * Z_HOME_DIR <= 0)
+          endstop_adj[i] = parser.value_linear_units();
         #if ENABLED(DEBUG_LEVELING_FEATURE)
           if (DEBUGGING(LEVELING)) {
             SERIAL_ECHOPAIR("endstop_adj[", axis_codes[i]);
@@ -8560,10 +8629,6 @@ inline void gcode_M205() {
         SERIAL_ECHOLNPGM("<<< gcode_M666");
       }
     #endif
-    // normalize endstops so all are <=0; set the residue to delta height
-    const float z_temp = MAX3(endstop_adj[A_AXIS], endstop_adj[B_AXIS], endstop_adj[C_AXIS]);
-    home_offset[Z_AXIS] -= z_temp;
-    LOOP_XYZ(i) endstop_adj[i] -= z_temp;
   }
 
 #elif IS_SCARA
@@ -10088,15 +10153,14 @@ inline void gcode_M907() {
   #ifndef INVERT_CASE_LIGHT
     #define INVERT_CASE_LIGHT false
   #endif
-  int case_light_brightness;  // LCD routine wants INT
+  uint8_t case_light_brightness;  // LCD routine wants INT
   bool case_light_on;
 
   void update_case_light() {
     pinMode(CASE_LIGHT_PIN, OUTPUT); // digitalWrite doesn't set the port mode
-    uint8_t case_light_bright = (uint8_t)case_light_brightness;
     if (case_light_on) {
       if (USEABLE_HARDWARE_PWM(CASE_LIGHT_PIN)) {
-        analogWrite(CASE_LIGHT_PIN, INVERT_CASE_LIGHT ? 255 - case_light_brightness : case_light_brightness );
+        analogWrite(CASE_LIGHT_PIN, INVERT_CASE_LIGHT ? 255 - case_light_brightness : case_light_brightness);
       }
       else WRITE(CASE_LIGHT_PIN, INVERT_CASE_LIGHT ? LOW : HIGH);
     }
@@ -10130,7 +10194,7 @@ inline void gcode_M355() {
     }
     else {
       if (!USEABLE_HARDWARE_PWM(CASE_LIGHT_PIN)) SERIAL_ECHOLN("Case light: on");
-      else SERIAL_ECHOLNPAIR("Case light: ", case_light_brightness);
+      else SERIAL_ECHOLNPAIR("Case light: ", (int)case_light_brightness);
     }
 
   #else
@@ -11822,15 +11886,15 @@ void ok_to_send() {
    * Recalculate factors used for delta kinematics whenever
    * settings have been changed (e.g., by M665).
    */
-  void recalc_delta_settings(float radius, float diagonal_rod) {
+  void recalc_delta_settings(float radius, float diagonal_rod, float tower_angle_trim[ABC]) {
     const float trt[ABC] = DELTA_RADIUS_TRIM_TOWER,
                 drt[ABC] = DELTA_DIAGONAL_ROD_TRIM_TOWER;
-    delta_tower[A_AXIS][X_AXIS] = cos(RADIANS(210 + delta_tower_angle_trim[A_AXIS])) * (radius + trt[A_AXIS]); // front left tower
-    delta_tower[A_AXIS][Y_AXIS] = sin(RADIANS(210 + delta_tower_angle_trim[A_AXIS])) * (radius + trt[A_AXIS]);
-    delta_tower[B_AXIS][X_AXIS] = cos(RADIANS(330 + delta_tower_angle_trim[B_AXIS])) * (radius + trt[B_AXIS]); // front right tower
-    delta_tower[B_AXIS][Y_AXIS] = sin(RADIANS(330 + delta_tower_angle_trim[B_AXIS])) * (radius + trt[B_AXIS]);
-    delta_tower[C_AXIS][X_AXIS] = 0.0; // back middle tower
-    delta_tower[C_AXIS][Y_AXIS] = (radius + trt[C_AXIS]);
+    delta_tower[A_AXIS][X_AXIS] = cos(RADIANS(210 + tower_angle_trim[A_AXIS])) * (radius + trt[A_AXIS]); // front left tower
+    delta_tower[A_AXIS][Y_AXIS] = sin(RADIANS(210 + tower_angle_trim[A_AXIS])) * (radius + trt[A_AXIS]);
+    delta_tower[B_AXIS][X_AXIS] = cos(RADIANS(330 + tower_angle_trim[B_AXIS])) * (radius + trt[B_AXIS]); // front right tower
+    delta_tower[B_AXIS][Y_AXIS] = sin(RADIANS(330 + tower_angle_trim[B_AXIS])) * (radius + trt[B_AXIS]);
+    delta_tower[C_AXIS][X_AXIS] = cos(RADIANS( 90 + tower_angle_trim[C_AXIS])) * (radius + trt[C_AXIS]); // back middle tower
+    delta_tower[C_AXIS][Y_AXIS] = sin(RADIANS( 90 + tower_angle_trim[C_AXIS])) * (radius + trt[C_AXIS]);
     delta_diagonal_rod_2_tower[A_AXIS] = sq(diagonal_rod + drt[A_AXIS]);
     delta_diagonal_rod_2_tower[B_AXIS] = sq(diagonal_rod + drt[B_AXIS]);
     delta_diagonal_rod_2_tower[C_AXIS] = sq(diagonal_rod + drt[C_AXIS]);
@@ -12437,7 +12501,7 @@ void set_current_from_steppers_for_axis(const AxisEnum axis) {
           break;
       }
     }
-    return false;
+    return prepare_move_to_destination_cartesian();
   }
 
 #endif // DUAL_X_CARRIAGE
@@ -12479,7 +12543,7 @@ void prepare_move_to_destination() {
     #elif IS_KINEMATIC
       prepare_kinematic_move_to(destination)
     #elif ENABLED(DUAL_X_CARRIAGE)
-      prepare_move_to_destination_dualx() || prepare_move_to_destination_cartesian()
+      prepare_move_to_destination_dualx()
     #else
       prepare_move_to_destination_cartesian()
     #endif
@@ -12591,7 +12655,7 @@ void prepare_move_to_destination() {
     millis_t next_idle_ms = millis() + 200UL;
 
     #if N_ARC_CORRECTION > 1
-      int8_t count = N_ARC_CORRECTION;
+      int8_t arc_recalc_count = N_ARC_CORRECTION;
     #endif
 
     for (uint16_t i = 1; i < segments; i++) { // Iterate (segments-1) times
@@ -12603,7 +12667,7 @@ void prepare_move_to_destination() {
       }
 
       #if N_ARC_CORRECTION > 1
-        if (--count) {
+        if (--arc_recalc_count) {
           // Apply vector rotation matrix to previous r_P / 1
           const float r_new_Y = r_P * sin_T + r_Q * cos_T;
           r_P = r_P * cos_T - r_Q * sin_T;
@@ -12613,7 +12677,7 @@ void prepare_move_to_destination() {
       #endif
       {
         #if N_ARC_CORRECTION > 1
-          count = N_ARC_CORRECTION;
+          arc_recalc_count = N_ARC_CORRECTION;
         #endif
 
         // Arc correction to radius vector. Computed only every N_ARC_CORRECTION increments.
@@ -12643,8 +12707,9 @@ void prepare_move_to_destination() {
     // motion control system might still be processing the action and the real tool position
     // in any intermediate location.
     set_current_to_destination();
-  }
-#endif
+  } // plan_arc
+
+#endif // ARC_SUPPORT
 
 #if ENABLED(BEZIER_CURVE_SUPPORT)
 
@@ -13008,9 +13073,6 @@ void disable_all_steppers() {
       #if ENABLED(E4_IS_TMC2130)
         automatic_current_control(stepperE4, "E4");
       #endif
-      #if ENABLED(E4_IS_TMC2130)
-        automatic_current_control(stepperE4);
-      #endif
     }
   }
 
@@ -13460,7 +13522,7 @@ void setup() {
     OUT_WRITE(STAT_LED_BLUE_PIN, LOW); // turn it off
   #endif
 
-  #if ENABLED(NEOPIXEL_RGBW_LED)
+  #if ENABLED(NEOPIXEL_LED)
     SET_OUTPUT(NEOPIXEL_PIN);
     setup_neopixel();
   #endif
@@ -13551,6 +13613,12 @@ void setup() {
       pe_deactivate_magnet(1);
     #endif
   #endif
+  #if ENABLED(MKS_12864OLED)
+    SET_OUTPUT(LCD_PINS_DC);
+    OUT_WRITE(LCD_PINS_RS, LOW);
+    delay(1000);
+    WRITE(LCD_PINS_RS, HIGH);
+  #endif
 }
 
 /**
@@ -13580,6 +13648,15 @@ void loop() {
           // M29 closes the file
           card.closefile();
           SERIAL_PROTOCOLLNPGM(MSG_FILE_SAVED);
+
+          #if ENABLED(SERIAL_STATS_DROPPED_RX)
+            SERIAL_ECHOLNPAIR("Dropped bytes: ", customizedSerial.dropped());
+          #endif
+
+          #if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
+            SERIAL_ECHOLNPAIR("Max RX Queue Size: ", customizedSerial.rxMaxEnqueued());
+          #endif
+
           ok_to_send();
         }
         else {

Marlin/Max7219_Debug_LEDs.cpp

@@ -21,199 +21,160 @@
  */
 
 /**
- * This module is normally not enabled.  It can be enabled to facilitate
- * the display of extra debug information during code development.
- * It assumes the existance of a Max7219 LED Matrix.   A suitable
- * device can be obtained on eBay similar to this: http://www.ebay.com/itm/191781645249
- * for under $2.00 including shipping.
+ * This module is off by default, but can be enabled to facilitate the display of
+ * extra debug information during code development. It assumes the existence of a
+ * Max7219 LED Matrix. A suitable device can be obtained on eBay similar to this:
+ * http://www.ebay.com/itm/191781645249 for under $2.00 including shipping.
  *
- * Just connect up +5v and Gnd to give it power.  And then 3 wires declared in the 
- * #define's below.  Actual pin assignments can be changed in MAX7219_DEBUG section 
- * of configuration_adv.h
+ * Just connect up +5v and GND to give it power, then connect up the pins assigned
+ * in Configuration_adv.h. For example, on the Re-ARM you could use:
  *
- *   #define Max7219_clock   77
- *   #define Max7219_data_in 78
- *   #define Max7219_load    79
+ *   #define MAX7219_CLK_PIN   77
+ *   #define MAX7219_DIN_PIN   78
+ *   #define MAX7219_LOAD_PIN  79
  *
- * First call Max7219_init() and then there are a number of support functions available
- * to control the LED's in the 8x8 grid.
+ * Max7219_init() is called automatically at startup, and then there are a number of
+ * support functions available to control the LEDs in the 8x8 grid.
  *
  * void Max7219_init();
  * void Max7219_PutByte(uint8_t data);
  * void Max7219(uint8_t reg, uint8_t data);
- * void Max7219_LED_On( int8_t row, int8_t col);
- * void Max7219_LED_Off( int8_t row, int8_t col);
- * void Max7219_LED_Toggle( int8_t row, int8_t col);
- * void Max7219_Clear_Row( int8_t row);
- * void Max7219_Clear_Column( int8_t col);
+ * void Max7219_LED_On(uint8_t row, uint8_t col);
+ * void Max7219_LED_Off(uint8_t row, uint8_t col);
+ * void Max7219_LED_Toggle(uint8_t row, uint8_t col);
+ * void Max7219_Clear_Row(uint8_t row);
+ * void Max7219_Clear_Column(uint8_t col);
+ * void Max7219_Set_Row(uint8_t row, uint8_t val);
+ * void Max7219_Set_Column(uint8_t col, uint8_t val);
+ * void Max7219_idle_tasks();
  */
 
-
-#include "Marlin.h"
+#include "MarlinConfig.h"
 
 #if ENABLED(MAX7219_DEBUG)
+
+  #include "Marlin.h"
   #include "planner.h"
   #include "stepper.h"
   #include "Max7219_Debug_LEDs.h"
 
-  static uint8_t LEDs[8] = {0};
+  static uint8_t LEDs[8] = { 0 };
 
   void Max7219_PutByte(uint8_t data) {
-    uint8_t i = 8;
-      while(i > 0) {
-        digitalWrite( Max7219_clock, LOW);    // tick
-        if (data & 0x80)                      // check bit
-          digitalWrite(Max7219_data_in,HIGH); // send 1
-        else
-          digitalWrite(Max7219_data_in,LOW);  // send 0
-        digitalWrite(Max7219_clock, HIGH);    // tock
-        data = data << 0x01;
-        --i;                                  // move to lesser bit
-      }
+    for (uint8_t i = 8; i--;) {
+      WRITE(MAX7219_CLK_PIN, LOW);       // tick
+      WRITE(MAX7219_DIN_PIN, (data & 0x80) ? HIGH : LOW);  // send 1 or 0 based on data bit
+      WRITE(MAX7219_CLK_PIN, HIGH);      // tock
+      data <<= 1;
     }
-
-  void Max7219( uint8_t reg, uint8_t data) {
-    digitalWrite(Max7219_load, LOW);  // begin
-    Max7219_PutByte(reg);             // specify register
-    Max7219_PutByte(data);            // put data
-    digitalWrite(Max7219_load, LOW);  // and tell the chip to load the data
-    digitalWrite(Max7219_load,HIGH);
   }
 
-  void Max7219_LED_On( int8_t row, int8_t col) {
-    int x_index;
-    if ( row>=8 || row<0 || col>=8 || col<0)
-      return;
-    if ( LEDs[row] & (0x01<<col) ) // if LED is already on, just leave
-      return;
+  void Max7219(const uint8_t reg, const uint8_t data) {
+    WRITE(MAX7219_LOAD_PIN, LOW);  // begin
+    Max7219_PutByte(reg);          // specify register
+    Max7219_PutByte(data);         // put data
+    WRITE(MAX7219_LOAD_PIN, LOW);  // and tell the chip to load the data
+    WRITE(MAX7219_LOAD_PIN, HIGH);
+  }
 
-    LEDs[row] |= (0x01<<col);
-    x_index = 7-row;
-    Max7219( x_index+1, LEDs[row] );
+  void Max7219_LED_Set(const uint8_t row, const uint8_t col, const bool on) {
+    if (row > 7 || col > 7) return;
+    if (TEST(LEDs[row], col) == on) return; // if LED is already on/off, leave alone
+    if (on) SBI(LEDs[row], col); else CBI(LEDs[row], col);
+    Max7219(8 - row, LEDs[row]);
   }
 
-  void Max7219_LED_Off( int8_t row, int8_t col) {
-    int x_index;
-    if ( row>=8 || row<0 || col>=8 || col<0)
-      return;
-    if ( !(LEDs[row] & (0x01<<col)) ) // if LED is already off, just leave
-      return;
+  void Max7219_LED_On(const uint8_t row, const uint8_t col) {
+    Max7219_LED_Set(row, col, true);
+  }
 
-    LEDs[row] ^= (0x01<<col);
-    x_index = 7-row;
-    Max7219( x_index+1, LEDs[row] );
+  void Max7219_LED_Off(const uint8_t row, const uint8_t col) {
+    Max7219_LED_Set(row, col, false);
   }
 
-  void Max7219_LED_Toggle( int8_t row, int8_t col) {
-    if ( row>=8 || row<0 || col>=8 || col<0)
-      return;
-    if ( (LEDs[row] & (0x01<<col)) )
-      Max7219_LED_Off( row, col);
+  void Max7219_LED_Toggle(const uint8_t row, const uint8_t col) {
+    if (row > 7 || col > 7) return;
+    if (TEST(LEDs[row], col))
+      Max7219_LED_Off(row, col);
     else
-      Max7219_LED_On( row, col);
+      Max7219_LED_On(row, col);
   }
 
-  void Max7219_Clear_Column( int8_t col) {
-    int x_index;
-    if ( col>=8 || col<0 )
-      return;
+  void Max7219_Clear_Column(const uint8_t col) {
+    if (col > 7) return;
     LEDs[col] = 0;
-    x_index = 7-col;
-    Max7219( x_index+1, LEDs[col] );
+    Max7219(8 - col, LEDs[col]);
   }
 
-  void Max7219_Clear_Row( int8_t row) {
-    int c;
-    if ( row>=8 || row<0 )
-      return;
-
-    for(c=0; c<8; c++)
-      Max7219_LED_Off( c, row);
+  void Max7219_Clear_Row(const uint8_t row) {
+    if (row > 7) return;
+    for (uint8_t c = 0; c <= 7; c++)
+      Max7219_LED_Off(c, row);
   }
 
-  void Max7219_Set_Row( int8_t row, uint8_t val) {
-    int b;
-
-    if ( row<0 || row>7 )
-      return;
-
-    if ( val<0 || val>255 )
-      return;
-
-    for(b=0; b<8; b++)
-      if ( val & (0x01 << b) )
-        Max7219_LED_On( 7-b, row);
+  void Max7219_Set_Row(const uint8_t row, const uint8_t val) {
+    if (row > 7) return;
+    for (uint8_t b = 0; b <= 7; b++)
+      if (TEST(val, b))
+        Max7219_LED_On(7 - b, row);
       else
-        Max7219_LED_Off( 7-b, row);
+        Max7219_LED_Off(7 - b, row);
   }
 
-  void Max7219_Set_Column( int8_t col, uint8_t val) {
-    int x_index;
-
-    if ( col>=8 || col<0 )
-      return;
-
-    if ( val<0 || val>255 )
-      return;
-
+  void Max7219_Set_Column(const uint8_t col, const uint8_t val) {
+    if (col > 7) return;
     LEDs[col] = val;
-    x_index = 7-col;
-    Max7219( x_index+1, LEDs[col] );
+    Max7219(8 - col, LEDs[col]);
   }
 
-
   void Max7219_init() {
-    int i, x, y;
+    uint8_t i, x, y;
 
-    pinMode(Max7219_data_in, OUTPUT);
-    pinMode(Max7219_clock,   OUTPUT);
-    pinMode(Max7219_load,    OUTPUT);
+    SET_OUTPUT(MAX7219_DIN_PIN);
+    SET_OUTPUT(MAX7219_CLK_PIN);
 
-    digitalWrite(Max7219_load, HIGH);
+    OUT_WRITE(MAX7219_LOAD_PIN, HIGH);
 
     //initiation of the max 7219
     Max7219(max7219_reg_scanLimit, 0x07);
     Max7219(max7219_reg_decodeMode, 0x00);  // using an led matrix (not digits)
     Max7219(max7219_reg_shutdown, 0x01);    // not in shutdown mode
     Max7219(max7219_reg_displayTest, 0x00); // no display test
-    Max7219(max7219_reg_intensity, 0x01 & 0x0f); // the first 0x0f is the value you can set
-                                                 // range: 0x00 to 0x0f
-    for (i=0; i<8; i++) {       // empty registers, turn all LEDs off
+    Max7219(max7219_reg_intensity, 0x01 & 0x0F); // the first 0x0F is the value you can set
+                                                 // range: 0x00 to 0x0F
+    for (i = 0; i <= 7; i++) {      // empty registers, turn all LEDs off
       LEDs[i] = 0x00;
-      Max7219(i+1,0);
+      Max7219(i + 1, 0);
     }
 
-    for(x=0; x<8; x++)  {       // Do an austetically pleasing pattern to fully test
-      for(y=0; y<8; y++) {      // the Max7219 module and LED's.   First, turn them
-        Max7219_LED_On( x, y);  // all on.
+    for (x = 0; x <= 7; x++)        // Do an aesthetically pleasing pattern to fully test
+      for (y = 0; y <= 7; y++) {    // the Max7219 module and LEDs. First, turn them
+        Max7219_LED_On(x, y);       // all on.
         delay(3);
       }
-    }
-    for(x=0; x<8; x++)  {       // Now, turn them all off.
-      for(y=0; y<8; y++) {
-        Max7219_LED_Off( x, y);
-        delay(3);               // delay() is OK here.  Max7219_init() is only called from
-      }                         // setup() and nothing is running yet.
-    }
+
+    for (x = 0; x <= 7; x++)        // Now, turn them all off.
+      for (y = 0; y <= 7; y++) {
+        Max7219_LED_Off(x, y);
+        delay(3);                   // delay() is OK here. Max7219_init() is only called from
+      }                             // setup() and nothing is running yet.
 
     delay(150);
 
-    for(x=7; x>=0; x--)  {     // Now, do the same thing from the opposite direction
-      for(y=0; y<8; y++) {
-        Max7219_LED_On( x, y);
+    for (x = 8; x--;)               // Now, do the same thing from the opposite direction
+      for (y = 0; y <= 7; y++) {
+        Max7219_LED_On(x, y);
         delay(2);
       }
-    }
 
-    for(x=7; x>=0; x--)  {
-      for(y=0; y<8; y++) {
-        Max7219_LED_Off( x, y);
+    for (x = 8; x--;)
+      for (y = 0; y <= 7; y++) {
+        Max7219_LED_Off(x, y);
         delay(2);
       }
-      }
-    }
+  }
 
-/*
+/**
  * These are sample debug features to demonstrate the usage of the 8x8 LED Matrix for debug purposes.
  * There is very little CPU burden added to the system by displaying information within the idle()
  * task.
@@ -223,17 +184,17 @@
  * or clear a row is not very significant.
  */
   void Max7219_idle_tasks() {
-    #ifdef MAX7219_DEBUG_PRINTER_ALIVE
-      static int debug_cnt=0;
+    #if ENABLED(MAX7219_DEBUG_PRINTER_ALIVE)
+      static int debug_cnt = 0;
       if (debug_cnt++ > 100) {
-        Max7219_LED_Toggle(7,7);
+        Max7219_LED_Toggle(7, 7);
         debug_cnt = 0;
       }
     #endif
 
     #ifdef MAX7219_DEBUG_STEPPER_HEAD
       Max7219_Clear_Row(MAX7219_DEBUG_STEPPER_HEAD);
-      Max7219_Clear_Row(MAX7219_DEBUG_STEPPER_HEAD+1);
+      Max7219_Clear_Row(MAX7219_DEBUG_STEPPER_HEAD + 1);
       if ( planner.block_buffer_head < 8)
         Max7219_LED_On( planner.block_buffer_head, MAX7219_DEBUG_STEPPER_HEAD);
       else
@@ -242,7 +203,7 @@
 
     #ifdef MAX7219_DEBUG_STEPPER_TAIL
       Max7219_Clear_Row(MAX7219_DEBUG_STEPPER_TAIL);
-      Max7219_Clear_Row(MAX7219_DEBUG_STEPPER_TAIL+1);
+      Max7219_Clear_Row(MAX7219_DEBUG_STEPPER_TAIL + 1);
       if ( planner.block_buffer_tail < 8)
         Max7219_LED_On( planner.block_buffer_tail, MAX7219_DEBUG_STEPPER_TAIL );
       else
@@ -250,37 +211,26 @@
     #endif
 
     #ifdef MAX7219_DEBUG_STEPPER_QUEUE
-      static int16_t last_depth=0, current_depth;
-      uint8_t i;
-      current_depth = planner.block_buffer_head - planner.block_buffer_tail;
+      static int16_t last_depth = 0;
+      int16_t current_depth = planner.block_buffer_head - planner.block_buffer_tail;
       if (current_depth != last_depth) {  // usually, no update will be needed.
-
-        if ( current_depth < 0 )
-          current_depth += BLOCK_BUFFER_SIZE;
-
-        if ( current_depth >= BLOCK_BUFFER_SIZE )
-          current_depth = BLOCK_BUFFER_SIZE;
-
-        if ( current_depth > 16 )         // if the BLOCK_BUFFER_SIZE is greater than 16 two lines
-          current_depth = 16;             // of LED's is enough to see if the buffer is draining
-
-        if ( current_depth < last_depth )
-          for(i=current_depth; i<=last_depth; i++) {   // clear the highest order LED's
-            if ( i & 1)
-              Max7219_LED_Off(i>>1, MAX7219_DEBUG_STEPPER_QUEUE+1);
-            else
-              Max7219_LED_Off(i>>1, MAX7219_DEBUG_STEPPER_QUEUE+0);
-          }
+        if (current_depth < 0) current_depth += BLOCK_BUFFER_SIZE;
+        NOMORE(current_depth, BLOCK_BUFFER_SIZE);
+        NOMORE(current_depth, 16);        // if the BLOCK_BUFFER_SIZE is greater than 16, two lines
+                                          // of LEDs is enough to see if the buffer is draining
+
+        const uint8_t st = min(current_depth, last_depth),
+                      en = max(current_depth, last_depth);
+        if (current_depth < last_depth)
+          for (uint8_t i = st; i <= en; i++)   // clear the highest order LEDs
+            Max7219_LED_Off(i >> 1, MAX7219_DEBUG_STEPPER_QUEUE + (i & 1));
         else
-          for(i=last_depth; i<=current_depth; i++) {   // light up the highest order LED's
-            if ( i & 1)
-              Max7219_LED_On(i>>1, MAX7219_DEBUG_STEPPER_QUEUE+1);
-            else
-              Max7219_LED_On(i>>1, MAX7219_DEBUG_STEPPER_QUEUE+0);
-          }
+          for (uint8_t i = st; i <= en; i++)   // set the highest order LEDs
+            Max7219_LED_On(i >> 1, MAX7219_DEBUG_STEPPER_QUEUE + (i & 1));
+
         last_depth = current_depth;
       }
     #endif
   }
-#endif //MAX7219_DEBUG
 
+#endif // MAX7219_DEBUG

Marlin/Max7219_Debug_LEDs.h

@@ -21,34 +21,38 @@
  */
 
 /**
- * This module is normally not enabled and does not generate any code.   But it
- * can be enabled to facilitate the display of extra debug information during
- * code development.   It assumes the existance of a Max7219 LED Matrix.   You
- * can get one on eBay similar to this: http://www.ebay.com/itm/191781645249
- * for under $2.00 including shipping.
+ * This module is off by default, but can be enabled to facilitate the display of
+ * extra debug information during code development. It assumes the existence of a
+ * Max7219 LED Matrix. A suitable device can be obtained on eBay similar to this:
+ * http://www.ebay.com/itm/191781645249 for under $2.00 including shipping.
  *
- * Just connect up +5v and Gnd to give it power.  And then 3 wires declared in the 
- * #define's below.  Actual pin assignments can be changed in MAX7219_DEBUG section 
- * of configuration_adv.h
+ * Just connect up +5v and GND to give it power, then connect up the pins assigned
+ * in Configuration_adv.h. For example, on the Re-ARM you could use:
  *
- * You first call Max7219_init() and then you have 3 support functions available
- * to control the LED's in the 8x8 grid.
+ *   #define MAX7219_CLK_PIN   77
+ *   #define MAX7219_DIN_PIN   78
+ *   #define MAX7219_LOAD_PIN  79
+ *
+ * Max7219_init() is called automatically at startup, and then there are a number of
+ * support functions available to control the LEDs in the 8x8 grid.
  *
  * void Max7219_init();
  * void Max7219_PutByte(uint8_t data);
  * void Max7219(uint8_t reg, uint8_t data);
- * void Max7219_LED_On( int8_t row, int8_t col);
- * void Max7219_LED_Off( int8_t row, int8_t col);
- * void Max7219_LED_Toggle( int8_t row, int8_t col);
- * void Max7219_Clear_Row( int8_t row);
- * void Max7219_Clear_Column( int8_t col);
- * void Max7219_Set_Row( int8_t row, int8_t val);
- * void Max7219_Set_Column( int8_t column, int8_t val);
+ * void Max7219_LED_Set(uint8_t row, uint8_t col, bool on);
+ * void Max7219_LED_On(uint8_t row, uint8_t col);
+ * void Max7219_LED_Off(uint8_t row, uint8_t col);
+ * void Max7219_LED_Toggle(uint8_t row, uint8_t col);
+ * void Max7219_Clear_Row(uint8_t row);
+ * void Max7219_Clear_Column(uint8_t col);
+ * void Max7219_Set_Row(uint8_t row, uint8_t val);
+ * void Max7219_Set_Column(uint8_t col, uint8_t val);
  * void Max7219_idle_tasks();
  */
 
+#ifndef __MAX7219_DEBUG_LEDS_H__
+#define __MAX7219_DEBUG_LEDS_H__
 
-#if ENABLED(MAX7219_DEBUG)
   //
   // define max7219 registers
   //
@@ -62,24 +66,23 @@
   #define max7219_reg_digit6      0x07
   #define max7219_reg_digit7      0x08
 
-  #define max7219_reg_intensity   0x0a
-  #define max7219_reg_displayTest 0x0f
+  #define max7219_reg_intensity   0x0A
+  #define max7219_reg_displayTest 0x0F
   #define max7219_reg_decodeMode  0x09
-  #define max7219_reg_scanLimit   0x0b
-  #define max7219_reg_shutdown    0x0c
-
+  #define max7219_reg_scanLimit   0x0B
+  #define max7219_reg_shutdown    0x0C
 
   void Max7219_init();
   void Max7219_PutByte(uint8_t data);
-  void Max7219(uint8_t reg, uint8_t data);
-  void Max7219_LED_On( int8_t row, int8_t col);
-  void Max7219_LED_Off( int8_t row, int8_t col);
-  void Max7219_LED_Toggle( int8_t row, int8_t col);
-  void Max7219_Clear_Row( int8_t row);
-  void Max7219_Clear_Column( int8_t col);
-  void Max7219_Set_Row( int8_t row, uint8_t val);
-  void Max7219_Set_Column( int8_t col, uint8_t val);
+  void Max7219(const uint8_t reg, const uint8_t data);
+  void Max7219_LED_Set(const uint8_t row, const uint8_t col, const bool on);
+  void Max7219_LED_On(const uint8_t row, const uint8_t col);
+  void Max7219_LED_Off(const uint8_t row, const uint8_t col);
+  void Max7219_LED_Toggle(const uint8_t row, const uint8_t col);
+  void Max7219_Clear_Row(const uint8_t row);
+  void Max7219_Clear_Column(const uint8_t col);
+  void Max7219_Set_Row(const uint8_t row, const uint8_t val);
+  void Max7219_Set_Column(const uint8_t col, const uint8_t val);
   void Max7219_idle_tasks();
-#endif
-
 
+#endif // __MAX7219_DEBUG_LEDS_H__

Marlin/SanityCheck.h

@@ -208,6 +208,10 @@
   #error "CONTROLLERFAN_PIN is now CONTROLLER_FAN_PIN, enabled with USE_CONTROLLER_FAN. Please update your Configuration_adv.h."
 #elif defined(MIN_RETRACT)
   #error "MIN_RETRACT is now MIN_AUTORETRACT and MAX_AUTORETRACT. Please update your Configuration_adv.h."
+#elif defined(ADVANCE)
+  #error "ADVANCE was removed in Marlin 1.1.6. Please use LIN_ADVANCE."
+#elif defined(NEOPIXEL_RGBW_LED)
+  #error "NEOPIXEL_RGBW_LED is now NEOPIXEL_LED. Please update your configuration."
 #endif
 
 /**
@@ -301,10 +305,14 @@ static_assert(X_MAX_LENGTH >= X_BED_SIZE && Y_MAX_LENGTH >= Y_BED_SIZE,
     #error "BABYSTEPPING is not implemented for SCARA yet."
   #elif ENABLED(DELTA) && ENABLED(BABYSTEP_XY)
     #error "BABYSTEPPING only implemented for Z axis on deltabots."
-  #elif ENABLED(BABYSTEP_ZPROBE_OFFSET) &&  ENABLED(MESH_BED_LEVELING)
+  #elif ENABLED(BABYSTEP_ZPROBE_OFFSET) && ENABLED(MESH_BED_LEVELING)
     #error "MESH_BED_LEVELING and BABYSTEP_ZPROBE_OFFSET is not a valid combination"
   #elif ENABLED(BABYSTEP_ZPROBE_OFFSET) && !HAS_BED_PROBE
     #error "BABYSTEP_ZPROBE_OFFSET requires a probe."
+  #elif ENABLED(BABYSTEP_ZPROBE_GFX_OVERLAY) && !ENABLED(DOGLCD)
+    #error "BABYSTEP_ZPROBE_GFX_OVERLAY requires a DOGLCD."
+  #elif ENABLED(BABYSTEP_ZPROBE_GFX_OVERLAY) && !ENABLED(BABYSTEP_ZPROBE_OFFSET)
+    #error "BABYSTEP_ZPROBE_GFX_OVERLAY requires a BABYSTEP_ZPROBE_OFFSET."
   #endif
 #endif
 
@@ -643,12 +651,8 @@ static_assert(1 >= 0
   /**
    * Require some kind of probe for bed leveling and probe testing
    */
-  #if HAS_ABL
-    #if ENABLED(AUTO_BED_LEVELING_UBL)
-      #error "Unified Bed Leveling requires a probe: FIX_MOUNTED_PROBE, BLTOUCH, SOLENOID_PROBE, Z_PROBE_ALLEN_KEY, Z_PROBE_SLED, or Z Servo."
-    #else
-      #error "Auto Bed Leveling requires one of these: PROBE_MANUALLY, FIX_MOUNTED_PROBE, BLTOUCH, SOLENOID_PROBE, Z_PROBE_ALLEN_KEY, Z_PROBE_SLED, or a Z Servo."
-    #endif
+  #if HAS_ABL && DISABLED(AUTO_BED_LEVELING_UBL)
+    #error "Auto Bed Leveling requires one of these: PROBE_MANUALLY, FIX_MOUNTED_PROBE, BLTOUCH, SOLENOID_PROBE, Z_PROBE_ALLEN_KEY, Z_PROBE_SLED, or a Z Servo."
   #endif
 
 #endif
@@ -812,13 +816,6 @@ static_assert(1 >= 0
 #endif // DISABLE_[XYZ]
 
 /**
- * Advance Extrusion
- */
-#if ENABLED(ADVANCE) && ENABLED(LIN_ADVANCE)
-  #error "You can enable ADVANCE or LIN_ADVANCE, but not both."
-#endif
-
-/**
  * Filament Width Sensor
  */
 #if ENABLED(FILAMENT_WIDTH_SENSOR) && !HAS_FILAMENT_WIDTH_SENSOR
@@ -955,28 +952,28 @@ static_assert(1 >= 0
           #error "TEMP_4_PIN not defined for this board."
         #endif
       #elif TEMP_SENSOR_4 != 0
-        #error "TEMP_SENSOR_4 shouldn't be set with only 4 extruders."
+        #error "TEMP_SENSOR_4 shouldn't be set with only 4 HOTENDS."
       #endif
     #elif TEMP_SENSOR_3 != 0
-      #error "TEMP_SENSOR_3 shouldn't be set with only 3 extruders."
+      #error "TEMP_SENSOR_3 shouldn't be set with only 3 HOTENDS."
     #elif TEMP_SENSOR_4 != 0
-      #error "TEMP_SENSOR_4 shouldn't be set with only 3 extruders."
+      #error "TEMP_SENSOR_4 shouldn't be set with only 3 HOTENDS."
     #endif
   #elif TEMP_SENSOR_2 != 0
-    #error "TEMP_SENSOR_2 shouldn't be set with only 2 extruders."
+    #error "TEMP_SENSOR_2 shouldn't be set with only 2 HOTENDS."
   #elif TEMP_SENSOR_3 != 0
-    #error "TEMP_SENSOR_3 shouldn't be set with only 2 extruders."
+    #error "TEMP_SENSOR_3 shouldn't be set with only 2 HOTENDS."
   #elif TEMP_SENSOR_4 != 0
-    #error "TEMP_SENSOR_4 shouldn't be set with only 2 extruders."
+    #error "TEMP_SENSOR_4 shouldn't be set with only 2 HOTENDS."
   #endif
 #elif TEMP_SENSOR_1 != 0 && DISABLED(TEMP_SENSOR_1_AS_REDUNDANT)
-  #error "TEMP_SENSOR_1 shouldn't be set with only 1 extruder."
+  #error "TEMP_SENSOR_1 shouldn't be set with only 1 HOTEND."
 #elif TEMP_SENSOR_2 != 0
-  #error "TEMP_SENSOR_2 shouldn't be set with only 1 extruder."
+  #error "TEMP_SENSOR_2 shouldn't be set with only 1 HOTEND."
 #elif TEMP_SENSOR_3 != 0
-  #error "TEMP_SENSOR_3 shouldn't be set with only 1 extruder."
+  #error "TEMP_SENSOR_3 shouldn't be set with only 1 HOTEND."
 #elif TEMP_SENSOR_4 != 0
-  #error "TEMP_SENSOR_4 shouldn't be set with only 1 extruder."
+  #error "TEMP_SENSOR_4 shouldn't be set with only 1 HOTEND."
 #endif
 
 #if ENABLED(TEMP_SENSOR_1_AS_REDUNDANT) && TEMP_SENSOR_1 == 0
@@ -1104,12 +1101,12 @@ static_assert(1 >= 0
   #if !(_RGB_TEST && PIN_EXISTS(RGB_LED_W))
     #error "RGBW_LED requires RGB_LED_R_PIN, RGB_LED_G_PIN, RGB_LED_B_PIN, and RGB_LED_W_PIN."
   #endif
-#elif ENABLED(NEOPIXEL_RGBW_LED)
+#elif ENABLED(NEOPIXEL_LED)
   #if !(PIN_EXISTS(NEOPIXEL) && NEOPIXEL_PIXELS > 0)
-    #error "NEOPIXEL_RGBW_LED requires NEOPIXEL_PIN and NEOPIXEL_PIXELS."
+    #error "NEOPIXEL_LED requires NEOPIXEL_PIN and NEOPIXEL_PIXELS."
   #endif
-#elif ENABLED(PRINTER_EVENT_LEDS) && DISABLED(BLINKM) && DISABLED(PCA9632) && DISABLED(NEOPIXEL_RGBW_LED)
-  #error "PRINTER_EVENT_LEDS requires BLINKM, PCA9632, RGB_LED, RGBW_LED or NEOPIXEL_RGBW_LED."
+#elif ENABLED(PRINTER_EVENT_LEDS) && DISABLED(BLINKM) && DISABLED(PCA9632) && DISABLED(NEOPIXEL_LED)
+  #error "PRINTER_EVENT_LEDS requires BLINKM, PCA9632, RGB_LED, RGBW_LED or NEOPIXEL_LED."
 #endif
 
 /**
@@ -1134,6 +1131,7 @@ static_assert(1 >= 0
  * Note: BQ_LCD_SMART_CONTROLLER => REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER
  *       REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER => REPRAP_DISCOUNT_SMART_CONTROLLER
  *       SAV_3DGLCD => U8GLIB_SH1106 => ULTIMAKERCONTROLLER
+ *       MKS_12864OLED => U8GLIB_SH1106 => ULTIMAKERCONTROLLER
  *       miniVIKI => ULTIMAKERCONTROLLER
  *       VIKI2 => ULTIMAKERCONTROLLER
  *       ELB_FULL_GRAPHIC_CONTROLLER => ULTIMAKERCONTROLLER
@@ -1141,19 +1139,34 @@ static_assert(1 >= 0
  */
 static_assert(1 >= 0
   #if ENABLED(ULTIMAKERCONTROLLER) \
-      && DISABLED(SAV_3DGLCD) && DISABLED(miniVIKI) && DISABLED(VIKI2) \
-      && DISABLED(ELB_FULL_GRAPHIC_CONTROLLER) && DISABLED(PANEL_ONE)
+      && DISABLED(SAV_3DGLCD) \
+      && DISABLED(miniVIKI) \
+      && DISABLED(VIKI2) \
+      && DISABLED(ELB_FULL_GRAPHIC_CONTROLLER) \
+      && DISABLED(PANEL_ONE) \
+      && DISABLED(MKS_12864OLED)
     + 1
   #endif
-  #if ENABLED(REPRAP_DISCOUNT_SMART_CONTROLLER) && DISABLED(REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER)
+  #if ENABLED(REPRAP_DISCOUNT_SMART_CONTROLLER) \
+      && DISABLED(REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER) \
+      && DISABLED(LCD_FOR_MELZI) \
+      && DISABLED(MAKEBOARD_MINI_2_LINE_DISPLAY_1602) \
+      && DISABLED(MKS_12864OLED)
     + 1
   #endif
-  #if ENABLED(REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER) && DISABLED(BQ_LCD_SMART_CONTROLLER)
+  #if ENABLED(REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER) \
+      && DISABLED(BQ_LCD_SMART_CONTROLLER)
     + 1
   #endif
   #if ENABLED(LCD_FOR_MELZI)
     + 1
   #endif
+  #if ENABLED(MKS_12864OLED)
+    + 1
+  #endif
+  #if ENABLED(MAKEBOARD_MINI_2_LINE_DISPLAY_1602)
+    + 1
+  #endif
   #if ENABLED(CARTESIO_UI)
     + 1
   #endif
@@ -1178,10 +1191,15 @@ static_assert(1 >= 0
   #if ENABLED(G3D_PANEL)
     + 1
   #endif
-  #if ENABLED(MINIPANEL)
+  #if ENABLED(MINIPANEL) && DISABLED(MKS_MINI_12864)
+    + 1
+  #endif
+  #if ENABLED(MKS_MINI_12864)
     + 1
   #endif
-  #if ENABLED(REPRAPWORLD_KEYPAD) && DISABLED(CARTESIO_UI) && DISABLED(ANET_KEYPAD_LCD)
+  #if ENABLED(REPRAPWORLD_KEYPAD) \
+      && DISABLED(CARTESIO_UI) \
+      && DISABLED(ANET_KEYPAD_LCD)
     + 1
   #endif
   #if ENABLED(RIGIDBOT_PANEL)

Marlin/cardreader.cpp

@@ -532,7 +532,7 @@ void CardReader::write_command(char *buf) {
 }
 
 void CardReader::checkautostart(bool force) {
-  if (!force && (!autostart_stilltocheck || ELAPSED(millis(), next_autostart_ms)))
+  if (!force && (!autostart_stilltocheck || PENDING(millis(), next_autostart_ms)))
     return;
 
   autostart_stilltocheck = false;

Marlin/cardreader.h

@@ -120,10 +120,10 @@ private:
           char **sortshort, **sortnames;
         #else
           char sortshort[SDSORT_LIMIT][FILENAME_LENGTH];
-          char sortnames[SDSORT_LIMIT][FILENAME_LENGTH];
+          char sortnames[SDSORT_LIMIT][LONG_FILENAME_LENGTH];
         #endif
       #elif DISABLED(SDSORT_USES_STACK)
-        char sortnames[SDSORT_LIMIT][FILENAME_LENGTH];
+        char sortnames[SDSORT_LIMIT][LONG_FILENAME_LENGTH];
       #endif
 
       // Folder sorting uses an isDir array when caching items.

Marlin/configuration_store.cpp

@@ -36,13 +36,13 @@
  *
  */
 
-#define EEPROM_VERSION "V40"
+#define EEPROM_VERSION "V41"
 
 // Change EEPROM version if these are changed:
 #define EEPROM_OFFSET 100
 
 /**
- * V39 EEPROM Layout:
+ * V41 EEPROM Layout:
  *
  *  100  Version                                    (char x4)
  *  104  EEPROM CRC16                               (uint16_t)
@@ -100,7 +100,7 @@
  *  372  M665 B    delta_calibration_radius         (float)
  *  376  M665 X    delta_tower_angle_trim[A]        (float)
  *  380  M665 Y    delta_tower_angle_trim[B]        (float)
- *  ---  M665 Z    delta_tower_angle_trim[C]        (float) is always 0.0
+ *  384  M665 Z    delta_tower_angle_trim[C]        (float)
  *
  * Z_DUAL_ENDSTOPS:                                 48 bytes
  *  348  M666 Z    z_endstop_adj                    (float)
@@ -215,7 +215,7 @@ void MarlinSettings::postprocess() {
   // Make sure delta kinematics are updated before refreshing the
   // planner position so the stepper counts will be set correctly.
   #if ENABLED(DELTA)
-    recalc_delta_settings(delta_radius, delta_diagonal_rod);
+    recalc_delta_settings(delta_radius, delta_diagonal_rod, delta_tower_angle_trim);
   #endif
 
   // Refresh steps_to_mm with the reciprocal of axis_steps_per_mm
@@ -448,16 +448,16 @@ void MarlinSettings::postprocess() {
       EEPROM_WRITE(storage_slot);
     #endif // AUTO_BED_LEVELING_UBL
 
-    // 9 floats for DELTA / Z_DUAL_ENDSTOPS
+    // 10 floats for DELTA / Z_DUAL_ENDSTOPS
     #if ENABLED(DELTA)
       EEPROM_WRITE(endstop_adj);               // 3 floats
       EEPROM_WRITE(delta_radius);              // 1 float
       EEPROM_WRITE(delta_diagonal_rod);        // 1 float
       EEPROM_WRITE(delta_segments_per_second); // 1 float
       EEPROM_WRITE(delta_calibration_radius);  // 1 float
-      EEPROM_WRITE(delta_tower_angle_trim);    // 2 floats
+      EEPROM_WRITE(delta_tower_angle_trim);    // 3 floats
       dummy = 0.0f;
-      for (uint8_t q = 3; q--;) EEPROM_WRITE(dummy);
+      for (uint8_t q = 2; q--;) EEPROM_WRITE(dummy);
     #elif ENABLED(Z_DUAL_ENDSTOPS)
       EEPROM_WRITE(z_endstop_adj);             // 1 float
       dummy = 0.0f;
@@ -844,9 +844,9 @@ void MarlinSettings::postprocess() {
         EEPROM_READ(delta_diagonal_rod);        // 1 float
         EEPROM_READ(delta_segments_per_second); // 1 float
         EEPROM_READ(delta_calibration_radius);  // 1 float
-        EEPROM_READ(delta_tower_angle_trim);    // 2 floats
+        EEPROM_READ(delta_tower_angle_trim);    // 3 floats
         dummy = 0.0f;
-        for (uint8_t q=3; q--;) EEPROM_READ(dummy);
+        for (uint8_t q=2; q--;) EEPROM_READ(dummy);
       #elif ENABLED(Z_DUAL_ENDSTOPS)
         EEPROM_READ(z_endstop_adj);
         dummy = 0.0f;
@@ -1233,8 +1233,7 @@ void MarlinSettings::reset() {
     delta_diagonal_rod = DELTA_DIAGONAL_ROD;
     delta_segments_per_second = DELTA_SEGMENTS_PER_SECOND;
     delta_calibration_radius = DELTA_CALIBRATION_RADIUS;
-    delta_tower_angle_trim[A_AXIS] = dta[A_AXIS] - dta[C_AXIS];
-    delta_tower_angle_trim[B_AXIS] = dta[B_AXIS] - dta[C_AXIS];
+    COPY(delta_tower_angle_trim, dta);
     home_offset[Z_AXIS] = 0;
 
   #elif ENABLED(Z_DUAL_ENDSTOPS)
@@ -1657,7 +1656,7 @@ void MarlinSettings::reset() {
       SERIAL_ECHOPAIR(" B", LINEAR_UNIT(delta_calibration_radius));
       SERIAL_ECHOPAIR(" X", LINEAR_UNIT(delta_tower_angle_trim[A_AXIS]));
       SERIAL_ECHOPAIR(" Y", LINEAR_UNIT(delta_tower_angle_trim[B_AXIS]));
-      SERIAL_ECHOPAIR(" Z", 0.00);
+      SERIAL_ECHOPAIR(" Z", LINEAR_UNIT(delta_tower_angle_trim[C_AXIS]));
       SERIAL_EOL();
     #elif ENABLED(Z_DUAL_ENDSTOPS)
       if (!forReplay) {

Marlin/dogm_bitmaps.h

@@ -419,4 +419,96 @@
       0x0C, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
     };
   #endif // Extruders
+
+  #if ENABLED(BABYSTEP_ZPROBE_GFX_OVERLAY)
+    const unsigned char cw_bmp[] PROGMEM = { //AVR-GCC, WinAVR
+      0x07,0xf8,0x00, // 000001111111100000000000
+      0x0c,0x0c,0x00, // 000011000000110000000000
+      0x10,0x02,0x00, // 000100000000001000000000
+      0x20,0x01,0x00, // 001000000000000100000000
+      0x60,0x01,0x80, // 011000000000000100000000
+      0x40,0x00,0x80, // 010000000000000010000000
+      0x40,0x03,0xe0, // 010000000000000011100000
+      0x40,0x01,0xc0, // 010000000000000011000000
+      0x40,0x00,0x80, // 010000000000000010000000
+      0x40,0x00,0x00, // 010000000000000000000000
+      0x40,0x00,0x00, // 010000000000000000000000
+      0x60,0x00,0x00, // 011000000000000000000000
+      0x20,0x00,0x00, // 001000000000000000000000
+      0x10,0x00,0x00, // 000100000000000000000000
+      0x0c,0x0c,0x00, // 000011000000110000000000
+      0x07,0xf8,0x00  // 000001111111100000000000
+    };
+
+    const unsigned char ccw_bmp[] PROGMEM = { //AVR-GCC, WinAVR
+      0x01,0xfe,0x00, // 000000011111111000000000
+      0x03,0x03,0x00, // 000000110000001100000000
+      0x04,0x00,0x80, // 000001000000000010000000
+      0x08,0x00,0x40, // 000010000000000001000000
+      0x18,0x00,0x60, // 000110000000000001100000
+      0x10,0x00,0x20, // 000100000000000000100000
+      0x7c,0x00,0x20, // 011111000000000000100000
+      0x38,0x00,0x20, // 001110000000000000100000
+      0x10,0x00,0x20, // 000100000000000000100000
+      0x00,0x00,0x20, // 000000000000000000100000
+      0x00,0x00,0x20, // 000000000000000000100000
+      0x00,0x00,0x60, // 000000000000000001100000
+      0x00,0x00,0x40, // 000000000000000001000000
+      0x00,0x00,0x80, // 000000000000000010000000
+      0x03,0x03,0x00, // 000000110000001100000000
+      0x01,0xfe,0x00  // 000000011111111000000000
+    };
+
+
+    const unsigned char up_arrow_bmp[] PROGMEM = { //AVR-GCC, WinAVR
+      0x06,0x00, // 000001100000
+      0x0F,0x00, // 000011110000
+      0x1F,0x80, // 000111111000
+      0x3F,0xC0, // 001111111100
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00  // 000001100000
+    };
+
+    const unsigned char down_arrow_bmp[] PROGMEM = { //AVR-GCC, WinAVR
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x3F,0xC0, // 001111111100
+      0x1F,0x80, // 000111111000
+      0x0F,0x00, // 000011110000
+      0x06,0x00  // 000001100000
+    };
+
+    const unsigned char offset_bedline_bmp[] PROGMEM = { //AVR-GCC, WinAVR
+      0xFF,0xFF,0xFF // 111111111111111111111111
+    };
+
+    const unsigned char nozzle_bmp[] PROGMEM = { //AVR-GCC, WinAVR
+      0x7F,0x80, // 0111111110000000
+      0xFF,0xC0, // 1111111111000000
+      0xFF,0xC0, // 1111111111000000
+      0xFF,0xC0, // 1111111111000000
+      0x7F,0x80, // 0111111110000000
+      0x7F,0x80, // 0111111110000000
+      0xFF,0xC0, // 1111111111000000
+      0xFF,0xC0, // 1111111111000000
+      0xFF,0xC0, // 1111111111000000
+      0x3F,0x00, // 0011111100000000
+      0x1E,0x00, // 0001111000000000
+      0x0C,0x00  // 0000110000000000
+    };
+  #endif // BABYSTEP_ZPROBE_GFX_OVERLAY
 #endif // HAS_TEMP_BED

Marlin/dogm_font_data_ISO10646_SK.h

@@ -0,0 +1,151 @@
+/*
+  Fontname: ISO10646_SK
+  Copyright: A. Hardtung, modified by Roman Moravcik
+  Capital A Height: 7, '1' Height: 7
+  Calculated Max Values w= 6 h= 9 x= 2 y= 7 dx= 6 dy= 0 ascent= 8 len= 9
+  Font Bounding box     w= 6 h= 9 x= 0 y=-2
+  Calculated Min Values           x= 0 y=-1 dx= 0 dy= 0
+  Pure Font   ascent = 7 descent=-1
+  X Font      ascent = 7 descent=-1
+  Max Font    ascent = 8 descent=-1
+*/
+#include <U8glib.h>
+const u8g_fntpgm_uint8_t ISO10646_SK[2203] U8G_SECTION(".progmem.ISO10646_SK") = {
+  0,6,9,0,254,7,1,146,3,33,32,255,255,8,255,7,
+  255,0,0,0,6,0,0,1,7,7,6,2,0,128,128,128,
+  128,128,0,128,3,2,2,6,1,5,160,160,5,7,7,6,
+  0,0,80,80,248,80,248,80,80,5,7,7,6,0,0,32,
+  120,160,112,40,240,32,5,7,7,6,0,0,192,200,16,32,
+  64,152,24,5,7,7,6,0,0,96,144,160,64,168,144,104,
+  2,3,3,6,1,4,192,64,128,3,7,7,6,1,0,32,
+  64,128,128,128,64,32,3,7,7,6,1,0,128,64,32,32,
+  32,64,128,5,5,5,6,0,1,32,168,112,168,32,5,5,
+  5,6,0,1,32,32,248,32,32,2,3,3,6,2,255,192,
+  64,128,5,1,1,6,0,3,248,2,2,2,6,2,0,192,
+  192,5,5,5,6,0,1,8,16,32,64,128,5,7,7,6,
+  0,0,112,136,136,136,136,136,112,3,7,7,6,1,0,64,
+  192,64,64,64,64,224,5,7,7,6,0,0,112,136,8,112,
+  128,128,248,5,7,7,6,0,0,248,16,32,16,8,8,240,
+  5,7,7,6,0,0,16,48,80,144,248,16,16,5,7,7,
+  6,0,0,248,128,240,8,8,136,112,5,7,7,6,0,0,
+  112,128,128,240,136,136,112,5,7,7,6,0,0,248,8,16,
+  32,32,32,32,5,7,7,6,0,0,112,136,136,112,136,136,
+  112,5,7,7,6,0,0,112,136,136,120,8,8,112,2,5,
+  5,6,2,0,192,192,0,192,192,2,6,6,6,2,255,192,
+  192,0,192,64,128,4,7,7,6,0,0,16,32,64,128,64,
+  32,16,5,3,3,6,0,2,248,0,248,4,7,7,6,1,
+  0,128,64,32,16,32,64,128,5,7,7,6,0,0,112,136,
+  8,16,32,0,32,5,7,7,6,0,0,112,136,8,104,168,
+  168,112,5,7,7,6,0,0,112,136,136,248,136,136,136,5,
+  7,7,6,0,0,240,136,136,240,136,136,240,5,7,7,6,
+  0,0,112,136,128,128,128,136,112,5,7,7,6,0,0,240,
+  136,136,136,136,136,240,5,7,7,6,0,0,248,128,128,240,
+  128,128,248,5,7,7,6,0,0,248,128,128,240,128,128,128,
+  5,7,7,6,0,0,112,136,128,184,136,136,112,5,7,7,
+  6,0,0,136,136,136,248,136,136,136,1,7,7,6,2,0,
+  128,128,128,128,128,128,128,5,7,7,6,0,0,56,16,16,
+  16,16,144,96,5,7,7,6,0,0,136,144,160,192,160,144,
+  136,5,7,7,6,0,0,128,128,128,128,128,128,248,5,7,
+  7,6,0,0,136,216,168,136,136,136,136,5,7,7,6,0,
+  0,136,136,200,168,152,136,136,5,7,7,6,0,0,112,136,
+  136,136,136,136,112,5,7,7,6,0,0,240,136,136,240,128,
+  128,128,5,7,7,6,0,0,112,136,136,136,168,144,104,5,
+  7,7,6,0,0,240,136,136,240,160,144,136,5,7,7,6,
+  0,0,120,128,128,112,8,8,240,5,7,7,6,0,0,248,
+  32,32,32,32,32,32,5,7,7,6,0,0,136,136,136,136,
+  136,136,112,5,7,7,6,0,0,136,136,136,136,136,80,32,
+  5,7,7,6,0,0,136,136,136,136,136,168,80,5,7,7,
+  6,0,0,136,136,80,32,80,136,136,5,7,7,6,0,0,
+  136,136,136,80,32,32,32,5,7,7,6,0,0,248,8,16,
+  32,64,128,248,3,7,7,6,1,0,224,128,128,128,128,128,
+  224,5,5,5,6,0,1,128,64,32,16,8,3,7,7,6,
+  1,0,224,32,32,32,32,32,224,5,3,3,6,0,4,32,
+  80,136,5,1,1,6,0,0,248,2,2,2,6,2,5,128,
+  64,5,5,5,6,0,0,112,8,120,136,120,5,7,7,6,
+  0,0,128,128,176,200,136,136,240,5,5,5,6,0,0,112,
+  128,128,136,112,5,7,7,6,0,0,8,8,104,152,136,136,
+  120,5,5,5,6,0,0,112,136,248,128,112,5,7,7,6,
+  0,0,48,72,224,64,64,64,64,5,6,6,6,0,255,112,
+  136,136,120,8,112,5,7,7,6,0,0,128,128,176,200,136,
+  136,136,1,7,7,6,2,0,128,0,128,128,128,128,128,3,
+  8,8,6,1,255,32,0,32,32,32,32,160,64,4,7,7,
+  6,0,0,128,128,144,160,192,160,144,3,7,7,6,1,0,
+  192,64,64,64,64,64,224,5,5,5,6,0,0,208,168,168,
+  168,168,5,5,5,6,0,0,176,200,136,136,136,5,5,5,
+  6,0,0,112,136,136,136,112,5,6,6,6,0,255,240,136,
+  136,240,128,128,5,6,6,6,0,255,120,136,136,120,8,8,
+  5,5,5,6,0,0,176,200,128,128,128,5,5,5,6,0,
+  0,112,128,112,8,240,4,7,7,6,0,0,64,64,224,64,
+  64,64,48,5,5,5,6,0,0,136,136,136,152,104,5,5,
+  5,6,0,0,136,136,136,80,32,5,5,5,6,0,0,136,
+  136,168,168,80,5,5,5,6,0,0,136,80,32,80,136,5,
+  6,6,6,0,255,136,136,136,120,8,112,5,5,5,6,0,
+  0,248,16,32,64,248,3,7,7,6,1,0,32,64,64,128,
+  64,64,32,1,7,7,6,2,0,128,128,128,128,128,128,128,
+  3,7,7,6,1,0,128,64,64,32,64,64,128,5,2,2,
+  6,0,2,104,144,0,0,0,6,0,0,5,8,8,6,0,
+  0,16,32,112,136,136,248,136,136,5,8,8,6,0,0,80,
+  0,112,136,136,248,136,136,5,8,8,6,0,0,8,16,248,
+  128,128,240,128,248,3,8,8,6,1,0,32,64,224,64,64,
+  64,64,224,5,8,8,6,0,0,16,32,112,136,136,136,136,
+  112,5,8,8,6,0,0,32,80,112,136,136,136,136,112,5,
+  8,8,6,0,0,16,32,136,136,136,136,136,112,5,8,8,
+  6,0,0,16,32,136,136,80,32,32,32,5,8,8,6,0,
+  0,16,32,0,112,8,120,136,120,5,7,7,6,0,0,80,
+  0,112,8,120,136,120,5,8,8,6,0,0,16,32,0,112,
+  136,248,128,112,2,8,8,6,2,0,64,128,0,128,128,128,
+  128,128,5,8,8,6,0,0,16,32,0,112,136,136,136,112,
+  5,8,8,6,0,0,32,80,0,112,136,136,136,112,5,8,
+  8,6,0,0,16,32,0,136,136,136,152,104,5,9,9,6,
+  0,255,16,32,0,136,136,136,120,8,112,5,8,8,6,0,
+  0,80,32,112,136,128,128,136,112,5,8,8,6,0,0,80,
+  32,0,112,128,128,136,112,5,8,8,6,0,0,80,32,240,
+  136,136,136,136,240,6,8,8,6,0,0,4,20,24,112,144,
+  144,144,112,5,8,8,6,0,0,16,32,128,128,128,128,128,
+  248,3,8,8,6,1,0,32,64,0,192,64,64,64,224,5,
+  8,8,6,0,0,16,144,160,128,128,128,128,248,5,8,8,
+  6,1,0,8,200,80,64,64,64,64,224,5,8,8,6,0,
+  0,80,32,136,200,168,152,136,136,5,8,8,6,0,0,80,
+  32,0,176,200,136,136,136,5,8,8,6,0,0,16,32,240,
+  136,240,160,144,136,5,8,8,6,0,0,16,32,0,176,200,
+  128,128,128,5,8,8,6,0,0,80,32,120,128,128,112,8,
+  240,5,8,8,6,0,0,80,32,0,112,128,112,8,240,5,
+  8,8,6,0,0,80,32,248,32,32,32,32,32,6,8,8,
+  6,0,0,4,68,72,224,64,64,64,48,5,8,8,6,0,
+  0,80,32,248,8,48,64,128,248,5,8,8,6,0,0,80,
+  32,0,248,16,32,64,248,0,0,0,6,0,0,0,0,0,
+  6,0,0,0,0,0,6,0,0,0,0,0,6,0,0,0,
+  0,0,6,0,0,0,0,0,6,0,0,0,0,0,6,0,
+  0,0,0,0,6,0,0,0,0,0,6,0,0,0,0,0,
+  6,0,0,0,0,0,6,0,0,0,0,0,6,0,0,0,
+  0,0,6,0,0,0,0,0,6,0,0,0,0,0,6,0,
+  0,0,0,0,6,0,0,0,0,0,6,0,0,0,0,0,
+  6,0,0,0,0,0,6,0,0,0,0,0,6,0,0,0,
+  0,0,6,0,0,0,0,0,6,0,0,0,0,0,6,0,
+  0,0,0,0,6,0,0,0,0,0,6,0,0,0,0,0,
+  6,0,0,0,0,0,6,0,0,0,0,0,6,0,0,0,
+  0,0,6,0,0,0,0,0,6,0,0,0,0,0,6,0,
+  0,0,0,0,6,0,0,0,0,0,6,0,0,0,0,0,
+  6,0,0,0,0,0,6,0,0,0,0,0,6,0,0,0,
+  0,0,6,0,0,0,0,0,6,0,0,0,0,0,6,0,
+  0,0,0,0,6,0,0,0,0,0,6,0,0,0,0,0,
+  6,0,0,0,0,0,6,0,0,0,0,0,6,0,0,0,
+  0,0,6,0,0,0,0,0,6,0,0,0,0,0,6,0,
+  0,0,0,0,6,0,0,0,0,0,6,0,0,0,0,0,
+  6,0,0,0,0,0,6,0,0,0,0,0,6,0,0,0,
+  0,0,6,0,0,0,0,0,6,0,0,0,0,0,6,0,
+  0,0,0,0,6,0,0,0,0,0,6,0,0,0,0,0,
+  6,0,0,0,0,0,6,0,0,0,0,0,6,0,0,0,
+  0,0,6,0,0,0,0,0,6,0,0,0,0,0,6,0,
+  0,0,0,0,6,0,0,0,0,0,6,0,0,0,0,0,
+  6,0,0,0,0,0,6,0,0,0,0,0,6,0,0,0,
+  0,0,6,0,0,0,0,0,6,0,0,0,0,0,6,0,
+  0,0,0,0,6,0,0,0,0,0,6,0,0,0,0,0,
+  6,0,0,0,0,0,6,0,0,0,0,0,6,0,0,0,
+  0,0,6,0,0,0,0,0,6,0,0,0,0,0,6,0,
+  0,0,0,0,6,0,0,0,0,0,6,0,0,0,0,0,
+  6,0,0,0,0,0,6,0,0,0,0,0,6,0,0,0,
+  0,0,6,0,0,0,0,0,6,0,0,0,0,0,6,0,
+  0,0,0,0,6,0,0,0,0,0,6,0,0,0,0,0,
+  6,0,0,0,0,0,6,0,0,0,0,0,6,0,0,0,
+  0,0,6,0,0,0,0,0,6,0,0};

Marlin/example_configurations/AlephObjects/TAZ4/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -779,6 +780,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -975,9 +978,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1218,7 +1223,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1518,6 +1523,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1574,16 +1608,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1592,11 +1632,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/AlephObjects/TAZ4/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/AliExpress/CL-260/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -759,6 +760,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -955,9 +958,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1198,7 +1203,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1498,6 +1503,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1554,16 +1588,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1572,11 +1612,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Anet/A6/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 115200
 
@@ -843,6 +844,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -1098,9 +1101,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1355,7 +1360,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1657,6 +1662,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1713,16 +1747,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1731,11 +1771,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Anet/A6/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY            // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/Anet/A8/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 115200
 
@@ -765,6 +766,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -961,9 +964,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1204,7 +1209,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1506,6 +1511,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1562,16 +1596,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1580,11 +1620,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Anet/A8/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/BQ/Hephestos/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 115200
 
@@ -750,6 +751,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -946,9 +949,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1189,7 +1194,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1489,6 +1494,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1545,16 +1579,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1563,11 +1603,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/BQ/Hephestos/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 1.75
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/BQ/Hephestos_2/Configuration.h

@@ -106,8 +106,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 115200
 
@@ -760,6 +761,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 #define Z_HOMING_HEIGHT 5    // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -956,9 +959,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1199,7 +1204,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1499,6 +1504,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1555,16 +1589,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1573,11 +1613,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/BQ/Hephestos_2/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 32
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/BQ/WITBOX/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 115200
 
@@ -750,6 +751,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -946,9 +949,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1189,7 +1194,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1489,6 +1494,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1545,16 +1579,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1563,11 +1603,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/BQ/WITBOX/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 1.75
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/Cartesio/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 115200
 
@@ -758,6 +759,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -954,9 +957,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1197,7 +1202,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1497,6 +1502,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1553,16 +1587,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1571,11 +1611,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Cartesio/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/Creality/CR-10/Configuration.h

@@ -77,7 +77,7 @@
 #define STRING_CONFIG_H_AUTHOR "(Creality CR-10)" // Who made the changes.
 #define SHOW_BOOTSCREEN
 #define STRING_SPLASH_LINE1 SHORT_BUILD_VERSION // will be shown during bootup in line 1
-//#define STRING_SPLASH_LINE2 WEBSITE_URL         // will be shown during bootup in line 2
+#define STRING_SPLASH_LINE2 WEBSITE_URL         // will be shown during bootup in line 2
 
 //
 // *** VENDORS PLEASE READ *****************************************************
@@ -90,7 +90,7 @@
 // boot image unmodified. For an example have a look at the bq Hephestos 2
 // example configuration folder.
 //
-//#define SHOW_CUSTOM_BOOTSCREEN
+#define SHOW_CUSTOM_BOOTSCREEN
 // @section machine
 
 /**
@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 115200
 
@@ -282,7 +283,7 @@
  *
  * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
  */
-#define TEMP_SENSOR_0 5
+#define TEMP_SENSOR_0 1
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
@@ -702,7 +703,7 @@
 #define Z_PROBE_SPEED_SLOW (Z_PROBE_SPEED_FAST / 2)
 
 // Use double touch for probing
-#define PROBE_DOUBLE_TOUCH
+//#define PROBE_DOUBLE_TOUCH
 
 /**
  * Z probes require clearance when deploying, stowing, and moving between
@@ -769,6 +770,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 5  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -788,7 +791,7 @@
 #define X_MIN_POS 0
 #define Y_MIN_POS 0
 #define Z_MIN_POS 0
-#define X_MAX_POS X_BED_SIZE
+#define X_MAX_POS X_BED_SIZE + 20
 #define Y_MAX_POS Y_BED_SIZE
 #define Z_MAX_POS 400
 
@@ -939,7 +942,7 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
+  //#define UBL_G26_MESH_VALIDATION // Enable G26 mesh validation
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
 
 #elif ENABLED(MESH_BED_LEVELING)
@@ -965,9 +968,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -994,6 +999,7 @@
 // - If stepper drivers time out, it will need X and Y homing again before Z homing.
 // - Move the Z probe (or nozzle) to a defined XY point before Z Homing when homing all axes (G28).
 // - Prevent Z homing when the Z probe is outside bed area.
+//
 //#define Z_SAFE_HOMING
 
 #if ENABLED(Z_SAFE_HOMING)
@@ -1018,13 +1024,10 @@
 // M500 - stores parameters in EEPROM
 // M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
 // M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-// Define this to enable EEPROM support
-#define EEPROM_SETTINGS
-
-#if ENABLED(EEPROM_SETTINGS)
-  //#define DISABLE_M503  // Saves ~2700 bytes of PROGMEM. Disable for release!
-  #define EEPROM_CHITCHAT // Print a report on M500. Please keep turned on.
-#endif
+//
+#define EEPROM_SETTINGS // Enable for M500 and M501 commands
+//#define DISABLE_M503    // Saves ~2700 bytes of PROGMEM. Disable for release!
+#define EEPROM_CHITCHAT   // Give feedback on EEPROM commands. Disable to save PROGMEM.
 
 //
 // Host Keepalive
@@ -1054,7 +1057,7 @@
 // @section temperature
 
 // Preheat Constants
-#define PREHEAT_1_TEMP_HOTEND 200
+#define PREHEAT_1_TEMP_HOTEND 190
 #define PREHEAT_1_TEMP_BED     70
 #define PREHEAT_1_FAN_SPEED     0 // Value from 0 to 255
 
@@ -1157,7 +1160,7 @@
  *   M76 - Pause the print job timer
  *   M77 - Stop the print job timer
  */
-//#define PRINTJOB_TIMER_AUTOSTART
+#define PRINTJOB_TIMER_AUTOSTART
 
 /**
  * Print Counter
@@ -1210,7 +1213,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1388,7 +1391,7 @@
 // RepRapDiscount FULL GRAPHIC Smart Controller
 // http://reprap.org/wiki/RepRapDiscount_Full_Graphic_Smart_Controller
 //
-#define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER
+//#define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER
 
 //
 // MakerLab Mini Panel with graphic
@@ -1510,6 +1513,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1566,16 +1598,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1584,11 +1622,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Creality/CR-10/_Bootscreen.h

@@ -0,0 +1,100 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Tongue-in-cheek placeholder for a more Marlin-specific bitmap
+ * The joke is that every "CR-10" has different branding!
+ * Made using The Gimp and...
+ *  - http://www.digole.com/tools/PicturetoC_Hex_converter.php
+ */
+#include <avr/pgmspace.h>
+
+#define CUSTOM_BOOTSCREEN_TIMEOUT   2500
+#define CUSTOM_BOOTSCREEN_BMPWIDTH  54
+#define CUSTOM_BOOTSCREEN_BMPHEIGHT 64
+
+const unsigned char custom_start_bmp[] PROGMEM = {
+  0x00, 0x00, 0x00, 0x01, 0xE0, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x3F, 0xF8, 0x00, 0x00,
+  0x00, 0x00, 0x03, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0x0F, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0x3F, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0x7F, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0x7F, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x0F, 0xF0,
+  0x00, 0x00, 0xFF, 0xFF, 0xFD, 0xFF, 0xF8,
+  0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC,
+  0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC,
+  0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC,
+  0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC,
+  0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC,
+  0x00, 0x1F, 0xFF, 0xFF, 0xFF, 0xFF, 0xF8,
+  0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0,
+  0x07, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xC0,
+  0x1F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00,
+  0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xC0, 0x00,
+  0x7F, 0xFF, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x7F, 0xFC, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x1F, 0x80, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0xFF, 0xFF, 0xFE, 0x3F, 0xF8,
+  0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC,
+  0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC,
+  0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC,
+  0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC,
+  0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC,
+  0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xF8,
+  0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xF8,
+  0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xE0,
+  0x00, 0x00, 0x7F, 0xFF, 0xFF, 0xFF, 0xC0,
+  0x00, 0x00, 0x3F, 0xFF, 0xFF, 0xFE, 0x00,
+  0x00, 0x00, 0x1F, 0xFF, 0xFF, 0xE0, 0x00,
+  0x00, 0x00, 0x07, 0xFF, 0xFC, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x3F, 0x00, 0x00, 0x00
+};

Marlin/example_configurations/Felix/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -741,6 +742,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -937,9 +940,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1180,7 +1185,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1480,6 +1485,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1536,16 +1570,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1554,11 +1594,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Felix/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/Felix/DUAL/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -741,6 +742,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -937,9 +940,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1180,7 +1185,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1480,6 +1485,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1536,16 +1570,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1554,11 +1594,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Folger Tech/i3-2020/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -762,6 +763,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 #define Z_HOMING_HEIGHT 2    // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -960,9 +963,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1203,7 +1208,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1503,6 +1508,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1559,16 +1593,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1577,11 +1617,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Folger Tech/i3-2020/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 #define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  //#define BABYSTEP_XY            // Also enable X/Y Babystepping. Not supported on DELTA!
   #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
   #define BABYSTEP_MULTIPLICATOR 2 // Babysteps are very small. Increase for faster motion.
   //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
   #define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/Geeetech/GT2560/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -774,6 +775,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -970,9 +973,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1213,7 +1218,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1513,6 +1518,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1569,16 +1603,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1587,11 +1627,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Geeetech/I3_Pro_X-GT2560/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -759,6 +760,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 #define Z_HOMING_HEIGHT 8  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -955,9 +958,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1198,7 +1203,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1498,6 +1503,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1554,16 +1588,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1572,11 +1612,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Infitary/i3-M508/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -763,6 +764,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -959,9 +962,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1202,7 +1207,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1502,6 +1507,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1558,16 +1592,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1576,11 +1616,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Infitary/i3-M508/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/Malyan/M150/Configuration.h

@@ -112,8 +112,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 115200
 
@@ -783,6 +784,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -983,9 +986,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1226,7 +1231,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1526,6 +1531,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1582,16 +1616,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1600,11 +1640,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Malyan/M150/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -759,6 +760,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -955,9 +958,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1198,7 +1203,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1498,6 +1503,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1554,16 +1588,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1572,11 +1612,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/RigidBot/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 115200
 
@@ -757,6 +758,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -953,9 +956,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1196,7 +1201,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1498,6 +1503,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1554,16 +1588,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1572,11 +1612,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/RigidBot/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 1.75
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 8
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/SCARA/Configuration.h

@@ -137,8 +137,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -771,6 +772,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -967,9 +970,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1210,7 +1215,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1510,6 +1515,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1566,16 +1600,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1584,11 +1624,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/SCARA/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 1.75
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/Sanguinololu/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 115200
 
@@ -181,7 +182,7 @@
  */
 //#define PARKING_EXTRUDER
 #if ENABLED(PARKING_EXTRUDER)
-  #define PARKING_EXTRUDER_SOLENOIDS_INVERT           // If enabled, the solenoid not magnetized with applied voltage
+  #define PARKING_EXTRUDER_SOLENOIDS_INVERT           // If enabled, the solenoid is NOT magnetized with applied voltage
   #define PARKING_EXTRUDER_SOLENOIDS_PINS_ACTIVE LOW  // LOW or HIGH pin signal energizes the coil
   #define PARKING_EXTRUDER_SOLENOIDS_DELAY 250        // Delay (ms) for magnetic field. No delay if 0 or not defined.
   #define PARKING_EXTRUDER_PARKING_X { -78, 184 }     // X positions for parking the extruders
@@ -790,6 +791,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 #define Z_HOMING_HEIGHT 4    // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -986,9 +989,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1229,7 +1234,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1529,6 +1534,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1585,16 +1619,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 #define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 11
   #define RGB_LED_G_PIN 10
@@ -1603,11 +1643,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Sanguinololu/Configuration_adv.h

@@ -499,7 +499,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -590,31 +590,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -731,7 +719,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -1263,6 +1251,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1372,29 +1361,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/TinyBoy2/Configuration.h

@@ -123,8 +123,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 115200
 
@@ -810,6 +811,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -1011,9 +1014,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1254,7 +1259,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1554,6 +1559,35 @@
 //
 #define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1610,16 +1644,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1628,11 +1668,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/TinyBoy2/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 64
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/Velleman/K8200/Configuration.h

@@ -123,8 +123,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -787,6 +788,9 @@
 #define INVERT_E4_DIR true
 
 // @section homing
+
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 // K8200: it is usual to have clamps for the glass plate on the heatbed
 #define Z_HOMING_HEIGHT 4   // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                             // Be sure you have this distance over your Z_MAX_POS in case.
@@ -984,9 +988,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1230,7 +1236,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1530,6 +1536,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 #endif // K8200_VM8201
 
 //=============================================================================
@@ -1588,16 +1623,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1606,11 +1647,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Velleman/K8200/Configuration_adv.h

@@ -235,7 +235,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -523,7 +523,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -614,31 +614,19 @@
  */
 #define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -755,7 +743,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -764,6 +752,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 128
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1287,6 +1297,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1396,29 +1407,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/Velleman/K8400/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -759,6 +760,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -955,9 +958,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1198,7 +1203,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1498,6 +1503,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1554,16 +1588,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1572,11 +1612,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/Velleman/K8400/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 26
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/Velleman/K8400/Dual-head/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -759,6 +760,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -955,9 +958,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1198,7 +1203,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1498,6 +1503,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1554,16 +1588,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1572,11 +1612,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/adafruit/ST7565/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -759,6 +760,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -955,9 +958,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1198,7 +1203,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1498,6 +1503,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1554,16 +1588,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1572,11 +1612,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -883,6 +884,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 #define Z_HOMING_HEIGHT 15   // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -1083,9 +1086,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1325,7 +1330,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1626,6 +1631,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1682,16 +1716,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1700,11 +1740,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -512,7 +512,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -610,24 +610,12 @@
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -744,7 +732,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -753,6 +741,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1276,6 +1286,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1385,29 +1396,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -883,6 +884,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 #define Z_HOMING_HEIGHT 15   // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -1077,9 +1080,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1319,7 +1324,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1619,6 +1624,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1675,16 +1709,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1693,11 +1733,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -512,7 +512,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -603,31 +603,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -744,7 +732,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -753,6 +741,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1276,6 +1286,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1385,29 +1396,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/delta/generic/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -870,6 +871,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -1072,9 +1075,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1314,7 +1319,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1614,6 +1619,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1670,16 +1704,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1688,11 +1728,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/delta/generic/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -512,7 +512,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -603,31 +603,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -744,7 +732,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -753,6 +741,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1276,6 +1286,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1385,29 +1396,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/delta/kossel_mini/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -873,6 +874,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 15 // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -1075,9 +1078,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1317,7 +1322,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1617,6 +1622,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1673,16 +1707,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1691,11 +1731,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -512,7 +512,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -603,31 +603,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -744,7 +732,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -753,6 +741,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1276,6 +1286,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1385,29 +1396,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/delta/kossel_pro/Configuration.h

@@ -111,8 +111,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 115200
 
@@ -873,6 +874,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -1075,9 +1078,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1317,7 +1322,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1617,6 +1622,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1673,16 +1707,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1691,11 +1731,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h

@@ -227,7 +227,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -517,7 +517,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -608,31 +608,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -749,7 +737,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -758,6 +746,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1281,6 +1291,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1390,29 +1401,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/delta/kossel_xl/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -882,6 +883,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -1084,9 +1087,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1326,7 +1331,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1626,6 +1631,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1682,16 +1716,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1700,11 +1740,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -512,7 +512,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -603,31 +603,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -744,7 +732,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -753,6 +741,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1276,6 +1286,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1385,29 +1396,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/gCreate/gMax1.5+/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -772,6 +773,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 #define Z_HOMING_HEIGHT 10   // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -969,9 +972,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1212,7 +1217,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1512,6 +1517,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1568,16 +1602,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1586,11 +1626,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/gCreate/gMax1.5+/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 #define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  //#define BABYSTEP_XY            // Also enable X/Y Babystepping. Not supported on DELTA!
   #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
   #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
   //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
   #define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 32
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,32 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 
 #define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display 
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/makibox/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -762,6 +763,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -958,9 +961,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1201,7 +1206,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1501,6 +1506,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1557,16 +1591,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1575,11 +1615,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/makibox/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/tvrrug/Round2/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 250000
 
@@ -754,6 +755,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -950,9 +953,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1193,7 +1198,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1493,6 +1498,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1549,16 +1583,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1567,11 +1607,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/example_configurations/wt150/Configuration.h

@@ -107,8 +107,9 @@
  *
  * 250000 works in most cases, but you might try a lower speed if
  * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
  *
- * :[2400, 9600, 19200, 38400, 57600, 115200, 250000]
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 115200
 
@@ -764,6 +765,8 @@
 
 // @section homing
 
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
+
 //#define Z_HOMING_HEIGHT 4  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
                              // Be sure you have this distance over your Z_MAX_POS in case.
 
@@ -960,9 +963,11 @@
 #if ENABLED(LCD_BED_LEVELING)
   #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
   #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-  #define LEVEL_BED_CORNERS   // Add an option to move between corners
 #endif
 
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LEVEL_BED_CORNERS
+
 /**
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
@@ -1203,7 +1208,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See http://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
@@ -1503,6 +1508,35 @@
 //
 //#define OLED_PANEL_TINYBOY2
 
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/Micromake-Makeboard-3D-Printer-Parts-3D-Printer-Mini-Display-1602-Mini-Controller-Compatible-with-Ramps-1/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// http://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// Factory display for Creality CR-10
+// https://www.aliexpress.com/item/Universal-LCD-12864-3D-Printer-Display-Screen-With-Encoder-For-CR-10-CR-7-Model/32833148327.html
+//
+// This is RAMPS-compatible using a single 10-pin connector.
+// (For CR-10 owners who want to replace the Melzi Creality board but retain the display)
+//
+//#define CR10_STOCKDISPLAY
+
+//
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -1559,16 +1593,22 @@
  * Adds the M150 command to set the LED (or LED strip) color.
  * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
  * luminance values can be set from 0 to 255.
+ * For Neopixel LED overall brightness parameters is also available 
  *
  * *** CAUTION ***
  *  LED Strips require a MOFSET Chip between PWM lines and LEDs,
  *  as the Arduino cannot handle the current the LEDs will require.
  *  Failure to follow this precaution can destroy your Arduino!
+ *  The Neopixel LED is 5V powered, but linear 5V regulator on Arduino
+ *  cannot handle such current, separate 5V power supply must be used
  * *** CAUTION ***
  *
+ * LED type. This options are mutualy exclusive. Uncomment only one.
+ *
  */
 //#define RGB_LED
 //#define RGBW_LED
+
 #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
   #define RGB_LED_R_PIN 34
   #define RGB_LED_G_PIN 43
@@ -1577,11 +1617,14 @@
 #endif
 
 // Support for Adafruit Neopixel LED driver
-//#define NEOPIXEL_RGBW_LED
-#if ENABLED(NEOPIXEL_RGBW_LED)
-  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
-  #define NEOPIXEL_PIXELS 3
-  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (definned in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_PIN    4        // LED driving pin on motherboard 4 => D4 (EXP2-5 on Printrboard) / 30 => PC7 (EXP3-13 on Rumba)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs on strip
+  #define NEOPIXEL_IS_SEQUENTIAL   // Sequent display for temperature change - LED by LED. Comment out for change all LED at time
+  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness 0-255
+  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup
 #endif
 
 /**

Marlin/example_configurations/wt150/Configuration_adv.h

@@ -222,7 +222,7 @@
 
 /**
  * Part-Cooling Fan Multiplexer
- * 
+ *
  * This feature allows you to digitally multiplex the fan output.
  * The multiplexer is automatically switched at tool-change.
  * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
@@ -510,7 +510,7 @@
 
   // SD Card Sorting options
   #if ENABLED(SDCARD_SORT_ALPHA)
-    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256).
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
     #define FOLDER_SORTING     -1     // -1=above  0=none  1=below
     #define SDSORT_GCODE       false  // Allow turning sorting on/off with LCD and M34 g-code.
     #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
@@ -601,31 +601,19 @@
  */
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
-  #define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
-  #define BABYSTEP_INVERT_Z false  // Change if Z babysteps should go the other way
-  #define BABYSTEP_MULTIPLICATOR 1 // Babysteps are very small. Increase for faster motion.
-  //#define BABYSTEP_ZPROBE_OFFSET // Enable to combine M851 and Babystepping
+  //#define BABYSTEP_XY              // Also enable X/Y Babystepping. Not supported on DELTA!
+  #define BABYSTEP_INVERT_Z false    // Change if Z babysteps should go the other way
+  #define BABYSTEP_MULTIPLICATOR 100 // Babysteps are very small. Increase for faster motion.
+  //#define BABYSTEP_ZPROBE_OFFSET   // Enable to combine M851 and Babystepping
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder
 
-// extruder advance constant (s2/mm3)
-//
-// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
-//
-// Hooke's law says:    force = k * distance
-// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
-// so: v ^ 2 is proportional to number of steps we advance the extruder
-//#define ADVANCE
-
-#if ENABLED(ADVANCE)
-  #define EXTRUDER_ADVANCE_K .0
-  #define D_FILAMENT 2.85
-#endif
-
 /**
  * Implementation of linear pressure control
  *
@@ -742,7 +730,7 @@
 #define MAX_CMD_SIZE 96
 #define BUFSIZE 4
 
-// Transfer Buffer Size
+// Transmission to Host Buffer Size
 // To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
 // To buffer a simple "ok" you need 4 bytes.
 // For ADVANCED_OK (M105) you need 32 bytes.
@@ -751,6 +739,28 @@
 // :[0, 2, 4, 8, 16, 32, 64, 128, 256]
 #define TX_BUFFER_SIZE 0
 
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if ENABLED(SDSUPPORT)
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
 // Enable an emergency-command parser to intercept certain commands as they
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
@@ -1274,6 +1284,7 @@
 #if ENABLED(CUSTOM_USER_MENUS)
   #define USER_SCRIPT_DONE "M117 User Script Done"
   #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
 
   #define USER_DESC_1 "Home & UBL Info"
   #define USER_GCODE_1 "G28\nG29 W"
@@ -1383,29 +1394,31 @@
 #endif // I2C_POSITION_ENCODERS
 
 /**
-  * Debug LED's using an 8x8 LED Matrix driven by a Max7219 chip.   Fully assembled versions are available on
-  * eBay for under $2.00 (including shipping) and only require 3 signal wires.
-  *
-  * Check out auctions similar to this: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=332349290049&_sacat=0
-  */
-
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip, which can be used as a status
+ * display. Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ *
+ * Fully assembled MAX7219 boards can be found on the internet for under $2(US).
+ * For example, see https://www.ebay.com/sch/i.html?_nkw=332349290049
+ */
 //#define MAX7219_DEBUG
 #if ENABLED(MAX7219_DEBUG)
-  #define Max7219_clock   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
-  #define Max7219_data_in 57  // 78 on Re-ARM
-  #define Max7219_load    44  // 79 on Re-ARM
+  #define MAX7219_CLK_PIN   64  // 77 on Re-ARM       // Configuration of the 3 pins to control the display
+  #define MAX7219_DIN_PIN   57  // 78 on Re-ARM
+  #define MAX7219_LOAD_PIN  44  // 79 on Re-ARM
 
-  /*
-   * These are sample debug features that can be turned on and configured for your use.
-   * The developer will need to manage the use of the various LED's in the 8x8 matrix to avoid conflicts.
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
    */
-  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix from idle() routine if firmware is functioning
-  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Display row position of stepper queue head on this line and the next line of LED matrix
-  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Display row position of stepper queue tail on this line and the next line of LED matrix
+  #define MAX7219_DEBUG_PRINTER_ALIVE    // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_STEPPER_HEAD  3  // Show the stepper queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_STEPPER_TAIL  5  // Show the stepper queue tail position on this and the next LED matrix row
 
-  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Display row position of stepper queue depth on this line and the next line of LED matrix
-                                         // If you have stuttering on your Delta printer, this option may help you understand how
-                                         // various tweaks you make to your configuration are affecting the printer.
+  #define MAX7219_DEBUG_STEPPER_QUEUE 0  // Show the current stepper queue depth on this and the next LED matrix row
+                                         // If you experience stuttering, reboots, etc. this option can reveal how
+                                         // tweaks made to the configuration are affecting the printer in real-time.
 #endif
 
 #endif // CONFIGURATION_ADV_H

Marlin/language.h

@@ -44,7 +44,7 @@
 //
 //   ==> ALWAYS TRY TO COMPILE MARLIN WITH/WITHOUT "ULTIPANEL" / "ULTRALCD" / "SDSUPPORT" #define IN "Configuration.h"
 //   ==> ALSO TRY ALL AVAILABLE LANGUAGE OPTIONS
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+// See also http://marlinfw.org/docs/development/lcd_language.html
 
 // Languages
 // an         Aragonese
@@ -160,6 +160,7 @@
 #define MSG_ERR_MATERIAL_INDEX              "M145 S<index> out of range (0-1)"
 #define MSG_ERR_M355_NONE                   "No case light"
 #define MSG_ERR_M421_PARAMETERS             "M421 incorrect parameter usage"
+#define MSG_ERR_BAD_PLANE_MODE              "G5 requires XY plane mode"
 #define MSG_ERR_MESH_XY                     "Mesh point cannot be resolved"
 #define MSG_ERR_ARC_ARGS                    "G2/G3 bad parameters"
 #define MSG_ERR_PROTECTED_PIN               "Protected Pin"
@@ -197,9 +198,6 @@
 #define MSG_ERR_COLD_EXTRUDE_STOP           " cold extrusion prevented"
 #define MSG_ERR_LONG_EXTRUDE_STOP           " too long extrusion prevented"
 #define MSG_TOO_COLD_FOR_M600               "M600 Hotend too cold to change filament"
-#define MSG_BABYSTEPPING_X                  "Babystepping X"
-#define MSG_BABYSTEPPING_Y                  "Babystepping Y"
-#define MSG_BABYSTEPPING_Z                  "Babystepping Z"
 #define MSG_SERIAL_ERROR_MENU_STRUCTURE     "Error in menu structure"
 
 #define MSG_ERR_EEPROM_WRITE                "Error writing to EEPROM!"

Marlin/language_an.h

@@ -24,7 +24,7 @@
  * Aragonese
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #ifndef LANGUAGE_AN_H

Marlin/language_bg.h

@@ -24,7 +24,7 @@
  * Bulgarian
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #ifndef LANGUAGE_BG_H

Marlin/language_ca.h

@@ -24,7 +24,7 @@
  * Catalan
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #ifndef LANGUAGE_CA_H

Marlin/language_cn.h

@@ -24,7 +24,7 @@
  * Chinese
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #ifndef LANGUAGE_CN_H

Marlin/language_cz.h

@@ -24,7 +24,7 @@
  * Czech
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  * Translated by Petr Zahradnik, Computer Laboratory
  * Blog and video blog Zahradnik se bavi

Marlin/language_cz_utf8.h

@@ -25,7 +25,7 @@
  * UTF-8 for Graphical Display
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  * Translated by Petr Zahradnik, Computer Laboratory
  * Blog and video blog Zahradnik se bavi

Marlin/language_da.h

@@ -24,7 +24,7 @@
  * Danish
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #ifndef LANGUAGE_DA_H

Marlin/language_de.h

@@ -24,7 +24,7 @@
  * German
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #ifndef LANGUAGE_DE_H

Marlin/language_el-gr.h

@@ -24,7 +24,7 @@
  * Greek (Greece)
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #ifndef LANGUAGE_EL_GR_H

Marlin/language_el.h

@@ -24,7 +24,7 @@
  * Greek
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #ifndef LANGUAGE_EL_H

Marlin/language_en.h

@@ -24,7 +24,7 @@
  * English
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #ifndef LANGUAGE_EN_H

Marlin/language_es.h

@@ -24,7 +24,7 @@
  * Spanish
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #ifndef LANGUAGE_ES_H

Marlin/language_eu.h

@@ -24,7 +24,7 @@
  * Basque-Euskera
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #ifndef LANGUAGE_EU_H

Marlin/language_fi.h

@@ -24,7 +24,7 @@
  * Finnish
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #ifndef LANGUAGE_FI_H

Marlin/language_fr.h

@@ -24,7 +24,7 @@
  * French
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #ifndef LANGUAGE_FR_H

Marlin/language_gl.h

@@ -24,7 +24,7 @@
  * Galician language (ISO "gl")
  *
  * LCD Menu Messages
- * See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #ifndef LANGUAGE_GL_H