Add support for BQ heated bed kit with Hephestos 2

Marlin/Conditionals_post.h

   #else
     #define WRITE_HEATER_0(v) WRITE_HEATER_0P(v)
   #endif
+
+  /**
+   * Heated bed requires settings
+   */
   #if HAS_HEATER_BED
-    #define WRITE_HEATER_BED(v) WRITE(HEATER_BED_PIN, v)
+    #ifndef MAX_BED_POWER
+      #define MAX_BED_POWER 255
+    #endif
+    #ifndef HEATER_BED_INVERTING
+      #define HEATER_BED_INVERTING false
+    #endif
+    #define WRITE_HEATER_BED(v) WRITE(HEATER_BED_PIN, (v) ^ HEATER_BED_INVERTING)
   #endif
 
   /**

Marlin/Marlin_main.cpp

 
     const float nx = lx - (X_PROBE_OFFSET_FROM_EXTRUDER), ny = ly - (Y_PROBE_OFFSET_FROM_EXTRUDER);
 
-    if (printable)
+    if (printable) {
       if (!position_is_reachable_by_probe_xy(lx, ly)) return NAN;
-    else
-      if (!position_is_reachable_xy(nx, ny)) return NAN;
+    }
+    else if (!position_is_reachable_xy(nx, ny)) return NAN;
 
     const float old_feedrate_mm_s = feedrate_mm_s;
 
       #endif
 
       ABL_VAR int left_probe_bed_position, right_probe_bed_position, front_probe_bed_position, back_probe_bed_position;
-      ABL_VAR float xGridSpacing, yGridSpacing;
+      ABL_VAR float xGridSpacing = 0, yGridSpacing = 0;
 
       #if ENABLED(AUTO_BED_LEVELING_LINEAR)
         ABL_VAR uint8_t abl_grid_points_x = GRID_MAX_POINTS_X,
     #endif
     const int8_t e=-2
   ) {
+    #if !(HAS_TEMP_BED && HAS_TEMP_HOTEND) && HOTENDS <= 1
+      UNUSED(e);
+    #endif
+
     SERIAL_PROTOCOLCHAR(' ');
     SERIAL_PROTOCOLCHAR(
       #if HAS_TEMP_BED && HAS_TEMP_HOTEND
   #if ENABLED(EXTRUDER_RUNOUT_PREVENT)
     if (ELAPSED(ms, previous_cmd_ms + (EXTRUDER_RUNOUT_SECONDS) * 1000UL)
       && thermalManager.degHotend(active_extruder) > EXTRUDER_RUNOUT_MINTEMP) {
-      bool oldstatus;
       #if ENABLED(SWITCHING_EXTRUDER)
-        oldstatus = E0_ENABLE_READ;
+        const bool oldstatus = E0_ENABLE_READ;
         enable_E0();
       #else // !SWITCHING_EXTRUDER
+        bool oldstatus;
         switch (active_extruder) {
-          case 0: oldstatus = E0_ENABLE_READ; enable_E0(); break;
+          default: oldstatus = E0_ENABLE_READ; enable_E0(); break;
           #if E_STEPPERS > 1
             case 1: oldstatus = E1_ENABLE_READ; enable_E1(); break;
             #if E_STEPPERS > 2

Marlin/example_configurations/Hephestos_2/Configuration.h

  *
  */
 
+#ifndef CONFIGURATION_H
+#define CONFIGURATION_H
+#define CONFIGURATION_H_VERSION 010100
+
+//===========================================================================
+//================================= README ==================================
+//===========================================================================
+
 /**
- * Configuration.h
- *
- * Basic settings such as:
- *
- * - Type of electronics
- * - Type of temperature sensor
- * - Printer geometry
- * - Endstop configuration
- * - LCD controller
- * - Extra features
+ * BQ Hephestos 2 Configuration
  *
- * Advanced settings can be found in Configuration_adv.h
+ * This configuration supports the standard Hephestos 2 with or without the
+ * heated bed kit featured at https://store.bq.com/en/heated-bed-kit-hephestos2
  *
+ * Enable the following option to activate all functionality related to the heated bed.
  */
-#ifndef CONFIGURATION_H
-#define CONFIGURATION_H
-#define CONFIGURATION_H_VERSION 010100
+//#define HEPHESTOS2_HEATED_BED_KIT
 
 //===========================================================================
 //============================= Getting Started =============================
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
-#define TEMP_SENSOR_BED 0
+
+#if ENABLED(HEPHESTOS2_HEATED_BED_KIT)
+  #define TEMP_SENSOR_BED 70
+  #define HEATER_BED_INVERTING true
+#else
+  #define TEMP_SENSOR_BED 0
+#endif
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
 // The minimal temperature defines the temperature below which the heater will not be enabled It is used
 // to check that the wiring to the thermistor is not broken.
 // Otherwise this would lead to the heater being powered on all the time.
-#define HEATER_0_MINTEMP 15
+#define HEATER_0_MINTEMP 5
 #define HEATER_1_MINTEMP 5
 #define HEATER_2_MINTEMP 5
 #define HEATER_3_MINTEMP 5
 // When temperature exceeds max temp, your heater will be switched off.
 // This feature exists to protect your hotend from overheating accidentally, but *NOT* from thermistor short/failure!
 // You should use MINTEMP for thermistor short/failure protection.
-#define HEATER_0_MAXTEMP 250
+#define HEATER_0_MAXTEMP 275
 #define HEATER_1_MAXTEMP 275
 #define HEATER_2_MAXTEMP 275
 #define HEATER_3_MAXTEMP 275
 #define HEATER_4_MAXTEMP 275
-#define BED_MAXTEMP 150
+#define BED_MAXTEMP      110
 
 //===========================================================================
 //============================= PID Settings ================================
 // all forms of bed control obey this (PID, bang-bang, bang-bang with hysteresis)
 // setting this to anything other than 255 enables a form of PWM to the bed just like HEATER_BED_DUTY_CYCLE_DIVIDER did,
 // so you shouldn't use it unless you are OK with PWM on your bed.  (see the comment on enabling PIDTEMPBED)
-//#define MAX_BED_POWER 255 // limits duty cycle to bed; 255=full current
+
+#if ENABLED(HEPHESTOS2_HEATED_BED_KIT)
+  #define MAX_BED_POWER 255 // limits duty cycle to bed; 255=full current
+#endif
 
 #if ENABLED(PIDTEMPBED)
 
  */
 
 #define THERMAL_PROTECTION_HOTENDS // Enable thermal protection for all extruders
-//#define THERMAL_PROTECTION_BED     // Enable thermal protection for the heated bed
+#define THERMAL_PROTECTION_BED     // Enable thermal protection for the heated bed
 
 //===========================================================================
 //============================= Mechanical Settings =========================
  * Override with M92
  *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
  */
-#define DEFAULT_AXIS_STEPS_PER_UNIT   { 160, 160, 8000, 204 }
+#define DEFAULT_AXIS_STEPS_PER_UNIT   { 160, 160, 8000, 210.02 }
 
 /**
  * Default Max Feed Rate (mm/s)
  * Override with M203
  *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
  */
-#define DEFAULT_MAX_FEEDRATE          { 250, 250, 2, 200 }
+#define DEFAULT_MAX_FEEDRATE          { 167, 167, 3.3, 167 }
 
 /**
  * Default Max Acceleration (change/s) change = mm/s
  * Override with M201
  *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
  */
-#define DEFAULT_MAX_ACCELERATION      { 800, 800, 20, 1000 }
+#define DEFAULT_MAX_ACCELERATION      { 1000, 1000, 100, 3000 }
 
 /**
  * Default Acceleration (change/s) change = mm/s
  *   M204 R    Retract Acceleration
  *   M204 T    Travel Acceleration
  */
-#define DEFAULT_ACCELERATION           800    // X, Y, Z and E acceleration for printing moves
-#define DEFAULT_RETRACT_ACCELERATION  1000    // E acceleration for retracts
+#define DEFAULT_ACCELERATION          1000    // X, Y, Z and E acceleration for printing moves
+#define DEFAULT_RETRACT_ACCELERATION  3000    // E acceleration for retracts
 #define DEFAULT_TRAVEL_ACCELERATION   1000    // X, Y, Z acceleration for travel (non printing) moves
 
 /**
  * When changing speed and direction, if the difference is less than the
  * value set here, it may happen instantaneously.
  */
-#define DEFAULT_XJERK                 10.0
-#define DEFAULT_YJERK                 10.0
+#define DEFAULT_XJERK                 20.0
+#define DEFAULT_YJERK                 20.0
 #define DEFAULT_ZJERK                  0.4
 #define DEFAULT_EJERK                  1.0
 
  */
 #define X_PROBE_OFFSET_FROM_EXTRUDER 34  // X offset: -left  +right  [of the nozzle]
 #define Y_PROBE_OFFSET_FROM_EXTRUDER 15  // Y offset: -front +behind [the nozzle]
-#define Z_PROBE_OFFSET_FROM_EXTRUDER 0   // Z offset: -below +above  [the nozzle]
+#define Z_PROBE_OFFSET_FROM_EXTRUDER  0  // Z offset: -below +above  [the nozzle]
 
 // X and Y axis travel speed (mm/m) between probes
 #define XY_PROBE_SPEED 8000
 #define Z_PROBE_OFFSET_RANGE_MAX  0
 
 // Enable the M48 repeatability test to test probe accuracy
-//#define Z_MIN_PROBE_REPEATABILITY_TEST
+#define Z_MIN_PROBE_REPEATABILITY_TEST
 
 // For Inverting Stepper Enable Pins (Active Low) use 0, Non Inverting (Active High) use 1
 // :{ 0:'Low', 1:'High' }
  */
 //#define AUTO_BED_LEVELING_3POINT
 //#define AUTO_BED_LEVELING_LINEAR
-//#define AUTO_BED_LEVELING_BILINEAR
+#define AUTO_BED_LEVELING_BILINEAR
 //#define AUTO_BED_LEVELING_UBL
 //#define MESH_BED_LEVELING
 
 
   // Set the number of grid points per dimension.
   #define GRID_MAX_POINTS_X 3
-  #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
+  #define GRID_MAX_POINTS_Y 4
 
   // Set the boundaries for probing (where the probe can reach).
-  #define LEFT_PROBE_BED_POSITION  X_MIN_POS + X_PROBE_OFFSET_FROM_EXTRUDER
+  #define LEFT_PROBE_BED_POSITION  X_MIN_POS + (X_PROBE_OFFSET_FROM_EXTRUDER)
   #define RIGHT_PROBE_BED_POSITION X_MAX_POS - (X_PROBE_OFFSET_FROM_EXTRUDER)
-  #define FRONT_PROBE_BED_POSITION Y_MIN_POS + Y_PROBE_OFFSET_FROM_EXTRUDER
+  #define FRONT_PROBE_BED_POSITION Y_MIN_POS + (Y_PROBE_OFFSET_FROM_EXTRUDER)
   #define BACK_PROBE_BED_POSITION  Y_MAX_POS - (Y_PROBE_OFFSET_FROM_EXTRUDER)
 
   // The Z probe minimum outer margin (to validate G29 parameters).
 // @section temperature
 
 // Preheat Constants
-#define PREHEAT_1_TEMP_HOTEND 210
-#define PREHEAT_1_TEMP_BED     70
+#define PREHEAT_1_TEMP_HOTEND 205
+#define PREHEAT_1_TEMP_BED     50
 #define PREHEAT_1_FAN_SPEED     0 // Value from 0 to 255
 
-#define PREHEAT_2_TEMP_HOTEND 240
-#define PREHEAT_2_TEMP_BED    110
+#define PREHEAT_2_TEMP_HOTEND 245
+#define PREHEAT_2_TEMP_BED     50
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
 /**

Marlin/example_configurations/Hephestos_2/Configuration_adv.h

 // then extrude some filament every couple of SECONDS.
 #define EXTRUDER_RUNOUT_PREVENT
 #if ENABLED(EXTRUDER_RUNOUT_PREVENT)
-  #define EXTRUDER_RUNOUT_MINTEMP 190
-  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_MINTEMP 170
+  #define EXTRUDER_RUNOUT_SECONDS 60
   #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
   #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
 #endif
 #define DEFAULT_MINIMUMFEEDRATE       0.0     // minimum feedrate
 #define DEFAULT_MINTRAVELFEEDRATE     0.0
 
-//#define HOME_AFTER_DEACTIVATE  // Require rehoming after steppers are deactivated
+#define HOME_AFTER_DEACTIVATE  // Require rehoming after steppers are deactivated
 
 // @section lcd
 
 #define LCD_INFO_MENU
 
 // Scroll a longer status message into view
-//#define STATUS_MESSAGE_SCROLLING
+#define STATUS_MESSAGE_SCROLLING
 
 // On the Info Screen, display XY with one decimal place when possible
 #define LCD_DECIMAL_SMALL_XY
 // enter the serial receive buffer, so they cannot be blocked.
 // Currently handles M108, M112, M410
 // Does not work on boards using AT90USB (USBCON) processors!
-//#define EMERGENCY_PARSER
+#define EMERGENCY_PARSER
 
 // Bad Serial-connections can miss a received command by sending an 'ok'
 // Therefore some clients abort after 30 seconds in a timeout.
 //#define NO_TIMEOUTS 1000 // Milliseconds
 
 // Some clients will have this feature soon. This could make the NO_TIMEOUTS unnecessary.
-//#define ADVANCED_OK
+#define ADVANCED_OK
 
 // @section fwretract
 

Marlin/example_configurations/Hephestos_2/README.md

 
 ## Changelog
  * 2016/03/01 - Initial release
+
  * 2016/03/21 - Activated 4-point auto leveling by default
                 Updated miscellaneous z-probe values
+
  * 2016/06/21 - Disabled hot bed related options
                 Activated software endstops
                 SD printing now disables the heater when finished
+
  * 2016/07/13 - Update the `DEFAULT_AXIS_STEPS_PER_UNIT` for the Z axis
                 Increased the `DEFAULT_XYJERK`
+
  * 2016/12/13 - Configuration updated.
+
+ * 2017/07/06 - Configuration updated to the latest Marlin version.
+                Added support for the official BQ heated bed kit.

Marlin/pins_BQ_ZUM_MEGA_3D.h

   #define Z_MIN_PIN       19 // IND_S_5V
   #define Z_MAX_PIN       18 // Z-MIN Label
 #endif
+
+
+//
+// This pin is used by the official Hephestos 2 heated bed upgrade kit
+//
+#if ENABLED(HEPHESTOS2_HEATED_BED_KIT)
+  #undef HEATER_BED_PIN
+  #define HEATER_BED_PIN 8
+#endif

Marlin/temperature.cpp

       #endif
     }
     else {
-      if (soft_pwm_count_0 <= pwm_count_tmp) WRITE_HEATER_0(0);
+      if (soft_pwm_count_0 <= pwm_count_tmp) WRITE_HEATER_0(LOW);
       #if HOTENDS > 1
-        if (soft_pwm_count_1 <= pwm_count_tmp) WRITE_HEATER_1(0);
+        if (soft_pwm_count_1 <= pwm_count_tmp) WRITE_HEATER_1(LOW);
         #if HOTENDS > 2
-          if (soft_pwm_count_2 <= pwm_count_tmp) WRITE_HEATER_2(0);
+          if (soft_pwm_count_2 <= pwm_count_tmp) WRITE_HEATER_2(LOW);
           #if HOTENDS > 3
-            if (soft_pwm_count_3 <= pwm_count_tmp) WRITE_HEATER_3(0);
+            if (soft_pwm_count_3 <= pwm_count_tmp) WRITE_HEATER_3(LOW);
             #if HOTENDS > 4
-              if (soft_pwm_count_4 <= pwm_count_tmp) WRITE_HEATER_4(0);
+              if (soft_pwm_count_4 <= pwm_count_tmp) WRITE_HEATER_4(LOW);
             #endif // HOTENDS > 4
           #endif // HOTENDS > 3
         #endif // HOTENDS > 2
       #endif // HOTENDS > 1
 
       #if HAS_HEATER_BED
-        if (soft_pwm_count_BED <= pwm_count_tmp) WRITE_HEATER_BED(0);
+        if (soft_pwm_count_BED <= pwm_count_tmp) WRITE_HEATER_BED(LOW);
       #endif
 
       #if ENABLED(FAN_SOFT_PWM)
         #if HAS_FAN0
-          if (soft_pwm_count_fan[0] <= pwm_count_tmp) WRITE_FAN(0);
+          if (soft_pwm_count_fan[0] <= pwm_count_tmp) WRITE_FAN(LOW);
         #endif
         #if HAS_FAN1
-          if (soft_pwm_count_fan[1] <= pwm_count_tmp) WRITE_FAN1(0);
+          if (soft_pwm_count_fan[1] <= pwm_count_tmp) WRITE_FAN1(LOW);
         #endif
         #if HAS_FAN2
-          if (soft_pwm_count_fan[2] <= pwm_count_tmp) WRITE_FAN2(0);
+          if (soft_pwm_count_fan[2] <= pwm_count_tmp) WRITE_FAN2(LOW);
         #endif
       #endif
     }
         #endif
       }
       #if HAS_FAN0
-        if (soft_pwm_count_fan[0] <= pwm_count_tmp) WRITE_FAN(0);
+        if (soft_pwm_count_fan[0] <= pwm_count_tmp) WRITE_FAN(LOW);
       #endif
       #if HAS_FAN1
-        if (soft_pwm_count_fan[1] <= pwm_count_tmp) WRITE_FAN1(0);
+        if (soft_pwm_count_fan[1] <= pwm_count_tmp) WRITE_FAN1(LOW);
       #endif
       #if HAS_FAN2
-        if (soft_pwm_count_fan[2] <= pwm_count_tmp) WRITE_FAN2(0);
+        if (soft_pwm_count_fan[2] <= pwm_count_tmp) WRITE_FAN2(LOW);
       #endif
     #endif // FAN_SOFT_PWM
 

Marlin/ultralcd_impl_DOGM.h

 }
 
 FORCE_INLINE void _draw_heater_status(const uint8_t x, const int8_t heater, const bool blink) {
+  #if !HEATER_IDLE_HANDLER
+    UNUSED(blink);
+  #endif
+
   #if HAS_TEMP_BED
-    bool isBed = heater < 0;
+    const bool isBed = heater < 0;
   #else
-    const bool isBed = false;
+    constexpr bool isBed = false;
   #endif
 
   if (PAGE_UNDER(7)) {
     #if HEATER_IDLE_HANDLER
       const bool is_idle = (!isBed ? thermalManager.is_heater_idle(heater) :
-      #if HAS_TEMP_BED
-        thermalManager.is_bed_idle()
-      #else
-        false
-      #endif
+        #if HAS_TEMP_BED
+          thermalManager.is_bed_idle()
+        #else
+          false
+        #endif
       );
 
       if (blink || !is_idle)
 
   #define DEFINE_LCD_IMPLEMENTATION_DRAWMENU_SETTING_EDIT_TYPE(_type, _name, _strFunc) \
     inline void lcd_implementation_drawmenu_setting_edit_ ## _name (const bool sel, const uint8_t row, const char* pstr, const char* pstr2, _type * const data, ...) { \
+      UNUSED(pstr2); \
       lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, _strFunc(*(data))); \
     } \
     inline void lcd_implementation_drawmenu_setting_edit_callback_ ## _name (const bool sel, const uint8_t row, const char* pstr, const char* pstr2, _type * const data, ...) { \
+      UNUSED(pstr2); \
       lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, _strFunc(*(data))); \
     } \
     inline void lcd_implementation_drawmenu_setting_edit_accessor_ ## _name (const bool sel, const uint8_t row, const char* pstr, const char* pstr2, _type (*pget)(), void (*pset)(_type), ...) { \
+      UNUSED(pstr2); UNUSED(pset); \
       lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, _strFunc(pget())); \
     } \
     typedef void _name##_void