Pulldown pin mode support (#9701)

Implemented for LPC1768.

Marlin/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/HAL/HAL_LPC1768/arduino.cpp

 
 // IO functions
 // As defined by Arduino INPUT(0x0), OUPUT(0x1), INPUT_PULLUP(0x2)
-void pinMode(pin_t pin, uint8_t mode) {
+void pinMode(const pin_t pin, const uint8_t mode) {
   if (!VALID_PIN(pin)) return;
 
   PINSEL_CFG_Type config = { LPC1768_PIN_PORT(pin),
                              PINSEL_FUNC_0,
                              PINSEL_PINMODE_TRISTATE,
                              PINSEL_PINMODE_NORMAL };
-  switch(mode) {
-  case INPUT:
-    LPC_GPIO(LPC1768_PIN_PORT(pin))->FIODIR &= ~LPC_PIN(LPC1768_PIN_PIN(pin));
-    PINSEL_ConfigPin(&config);
-    break;
-  case OUTPUT:
-    LPC_GPIO(LPC1768_PIN_PORT(pin))->FIODIR |=  LPC_PIN(LPC1768_PIN_PIN(pin));
-    PINSEL_ConfigPin(&config);
-    break;
-  case INPUT_PULLUP:
-    LPC_GPIO(LPC1768_PIN_PORT(pin))->FIODIR &= ~LPC_PIN(LPC1768_PIN_PIN(pin));
-    config.Pinmode = PINSEL_PINMODE_PULLUP;
-    PINSEL_ConfigPin(&config);
-    break;
-  default:
-    break;
+  switch (mode) {
+    case INPUT:
+      LPC_GPIO(LPC1768_PIN_PORT(pin))->FIODIR &= ~LPC_PIN(LPC1768_PIN_PIN(pin));
+      break;
+    case OUTPUT:
+      LPC_GPIO(LPC1768_PIN_PORT(pin))->FIODIR |=  LPC_PIN(LPC1768_PIN_PIN(pin));
+      break;
+    case INPUT_PULLUP:
+      LPC_GPIO(LPC1768_PIN_PORT(pin))->FIODIR &= ~LPC_PIN(LPC1768_PIN_PIN(pin));
+      config.Pinmode = PINSEL_PINMODE_PULLUP;
+      break;
+    case INPUT_PULLDOWN:
+      LPC_GPIO(LPC1768_PIN_PORT(pin))->FIODIR &= ~LPC_PIN(LPC1768_PIN_PIN(pin));
+      config.Pinmode = PINSEL_PINMODE_PULLDOWN;
+      break;
+    default: return;
   }
+  PINSEL_ConfigPin(&config);
 }
 
 void digitalWrite(pin_t pin, uint8_t pin_status) {
 
   pinMode(pin, OUTPUT);  // Set pin mode on every write (Arduino version does this)
 
-    /**
-     * Must be done AFTER the output state is set. Doing this before will cause a
-     * 2uS glitch if writing a "1".
-     *
-     * When the Port Direction bit is written to a "1" the output is immediately set
-     * to the value of the FIOPIN bit which is "0" because of power up defaults.
-     */
+  /**
+   * Must be done AFTER the output state is set. Doing this before will cause a
+   * 2uS glitch if writing a "1".
+   *
+   * When the Port Direction bit is written to a "1" the output is immediately set
+   * to the value of the FIOPIN bit which is "0" because of power up defaults.
+   */
 }
 
 bool digitalRead(pin_t pin) {

Marlin/src/HAL/HAL_LPC1768/fastio.h

 /// set pin as input with pullup mode
 #define _PULLUP(IO, v) (pinMode(IO, (v!=LOW ? INPUT_PULLUP : INPUT)))
 
+/// set pin as input with pulldown mode
+#define _PULLDOWN(IO, v) (pinMode(IO, (v!=LOW ? INPUT_PULLDOWN : INPUT)))
+
 // hg42: all pins can be input or output (I hope)
 // hg42: undefined pins create compile error (IO, is no pin)
 // hg42: currently not used, but was used by pinsDebug
 #define SET_INPUT(IO)  _SET_INPUT(IO)
 /// set pin as input with pullup wrapper
 #define SET_INPUT_PULLUP(IO) do{ _SET_INPUT(IO); _PULLUP(IO, HIGH); }while(0)
+/// set pin as input with pulldown wrapper
+#define SET_INPUT_PULLDOWN(IO) do{ _SET_INPUT(IO); _PULLDOWN(IO, HIGH); }while(0)
 /// set pin as output wrapper  -  reads the pin and sets the output to that value
 #define SET_OUTPUT(IO)  do{ _WRITE(IO, _READ(IO)); _SET_OUTPUT(IO); }while(0)
 

Marlin/src/HAL/HAL_LPC1768/include/Arduino.h

 #define HIGH         0x01
 #define LOW          0x00
 
-#define INPUT        0x00
-#define OUTPUT       0x01
-#define INPUT_PULLUP 0x02
+#define INPUT          0x00
+#define OUTPUT         0x01
+#define INPUT_PULLUP   0x02
+#define INPUT_PULLDOWN 0x03
 
 #define LSBFIRST     0
 #define MSBFIRST     1
 uint32_t millis();
 
 //IO functions
-void pinMode(pin_t, uint8_t);
+void pinMode(const pin_t, const uint8_t);
 void digitalWrite(pin_t, uint8_t);
 bool digitalRead(pin_t);
 void analogWrite(pin_t, int);

Marlin/src/Marlin.cpp

 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
 
   void setup_filrunoutpin() {
-    #if ENABLED(ENDSTOPPULLUP_FIL_RUNOUT)
+    #if ENABLED(FIL_RUNOUT_PULLUP)
       SET_INPUT_PULLUP(FIL_RUNOUT_PIN);
+    #elif ENABLED(FIL_RUNOUT_PULLDOWN)
+      SET_INPUT_PULLDOWN(FIL_RUNOUT_PIN);
     #else
       SET_INPUT(FIL_RUNOUT_PIN);
     #endif

Marlin/src/config/default/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/AlephObjects/TAZ4/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/AliExpress/CL-260/Configuration.h

 #define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Anet/A6/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Anet/A8/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Azteeg/X5GT/Configuration.h

 #define USE_YMAX_PLUG
 #define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/BIBO/TouchX/cyclops/Configuration.h

 #define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 const bool X_MIN_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Y_MIN_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/BIBO/TouchX/default/Configuration.h

 #define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 const bool X_MIN_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 const bool Y_MIN_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/BQ/Hephestos/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/BQ/Hephestos_2/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/BQ/WITBOX/Configuration.h

 #define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Cartesio/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Creality/CR-10/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-//#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+//#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Creality/CR-10S/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING true // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
   #define FIL_RUNOUT_PIN 2 // Creality CR10-S stock sensor
 #endif

Marlin/src/config/examples/Creality/Ender/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Felix/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Felix/DUAL/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/FolgerTech/i3-2020/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Geeetech/GT2560/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Geeetech/I3_Pro_X-GT2560/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Geeetech/Prusa i3 Pro B/bltouch/Configuration.h

 //#define USE_YMAX_PLUG
 #define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Geeetech/Prusa i3 Pro B/noprobe/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Infitary/i3-M508/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/JGAurora/A5/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 #define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/MakerParts/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   #define ENDSTOPPULLUP_XMAX
   #define ENDSTOPPULLUP_YMAX
   #define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Malyan/M150/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 
 #define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Malyan/M200/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Micromake/C1/basic/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Micromake/C1/enhanced/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Mks/Sbase/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/RepRapWorld/Megatronics/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/RigidBot/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/SCARA/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-//#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+//#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   #define ENDSTOPPULLUP_ZMAX  // open pin, inverted
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/STM32F10/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Sanguinololu/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/TheBorg/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/TinyBoy2/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Tronxy/X1/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Tronxy/X5S/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Tronxy/XY100/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/UltiMachine/Archim2/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Velleman/K8200/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Velleman/K8400/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Velleman/K8400/Dual-head/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/Wanhao/Duplicator 6/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/adafruit/ST7565/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/delta/FLSUN/auto_calibrate/Configuration.h

 #define USE_YMAX_PLUG
 #define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/delta/FLSUN/kossel/Configuration.h

 #define USE_YMAX_PLUG
 #define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/delta/FLSUN/kossel_mini/Configuration.h

 #define USE_YMAX_PLUG
 #define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/delta/generic/Configuration.h

 #define USE_YMAX_PLUG
 #define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/delta/kossel_mini/Configuration.h

 #define USE_YMAX_PLUG
 #define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/delta/kossel_pro/Configuration.h

 #define USE_YMAX_PLUG
 #define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/delta/kossel_xl/Configuration.h

 #define USE_YMAX_PLUG
 #define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-//#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+//#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   #define ENDSTOPPULLUP_XMAX
   #define ENDSTOPPULLUP_YMAX
   #define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/gCreate/gMax1.5+/Configuration.h

 #define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-//#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+//#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/makibox/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/stm32f103ret6/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/tvrrug/Round2/Configuration.h

 //#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/config/examples/wt150/Configuration.h

 //#define USE_YMAX_PLUG
 #define USE_ZMAX_PLUG
 
-// coarse Endstop Settings
-//#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
-
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
-  // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
+  // Disable ENDSTOPPULLUPS to set pullups individually
   //#define ENDSTOPPULLUP_XMAX
   //#define ENDSTOPPULLUP_YMAX
   //#define ENDSTOPPULLUP_ZMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
 // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
 #define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 #define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
-  #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 #endif
 

Marlin/src/inc/Conditionals_post.h

 #endif
 
 /**
+ * Set ENDSTOPPULLDOWNS for active endstop switches
+ */
+#if ENABLED(ENDSTOPPULLDOWNS)
+  #if ENABLED(USE_XMAX_PLUG)
+    #define ENDSTOPPULLDOWN_XMAX
+  #endif
+  #if ENABLED(USE_YMAX_PLUG)
+    #define ENDSTOPPULLDOWN_YMAX
+  #endif
+  #if ENABLED(USE_ZMAX_PLUG)
+    #define ENDSTOPPULLDOWN_ZMAX
+  #endif
+  #if ENABLED(USE_XMIN_PLUG)
+    #define ENDSTOPPULLDOWN_XMIN
+  #endif
+  #if ENABLED(USE_YMIN_PLUG)
+    #define ENDSTOPPULLDOWN_YMIN
+  #endif
+  #if ENABLED(USE_ZMIN_PLUG)
+    #define ENDSTOPPULLDOWN_ZMIN
+  #endif
+#endif
+
+/**
  * Shorthand for pin tests, used wherever needed
  */
 

Marlin/src/inc/SanityCheck.h

 #elif defined(SDEXTRASLOW)
   #error "SDEXTRASLOW deprecated. Set SPI_SPEED to SPI_QUARTER_SPEED instead."
 #elif defined(FILAMENT_SENSOR)
-  #error "FILAMENT_SENSOR is deprecated. Use FILAMENT_WIDTH_SENSOR instead."
+  #error "FILAMENT_SENSOR is now FILAMENT_WIDTH_SENSOR. Please update your configuration."
+#elif defined(ENDSTOPPULLUP_FIL_RUNOUT)
+  #error "ENDSTOPPULLUP_FIL_RUNOUT is now FIL_RUNOUT_PULLUP. Please update your configuration."
 #elif defined(DISABLE_MAX_ENDSTOPS) || defined(DISABLE_MIN_ENDSTOPS)
   #error "DISABLE_MAX_ENDSTOPS and DISABLE_MIN_ENDSTOPS deprecated. Use individual USE_*_PLUG options instead."
 #elif defined(LANGUAGE_INCLUDE)
   #endif
 #endif
 
+#if !defined(TARGET_LPC1768) && ( \
+     ENABLED(ENDSTOPPULLDOWNS) \
+  || ENABLED(ENDSTOPPULLDOWN_XMAX) \
+  || ENABLED(ENDSTOPPULLDOWN_YMAX) \
+  || ENABLED(ENDSTOPPULLDOWN_ZMAX) \
+  || ENABLED(ENDSTOPPULLDOWN_XMIN) \
+  || ENABLED(ENDSTOPPULLDOWN_YMIN) \
+  || ENABLED(ENDSTOPPULLDOWN_ZMIN) )
+  #error "PULLDOWN pin mode is not available on the selected board."
+#endif
+
+#if ENABLED(ENDSTOPPULLUPS) && ENABLED(ENDSTOPPULLDOWNS)
+  #error "Enable only one of ENDSTOPPULLUPS or ENDSTOPPULLDOWNS."
+#elif ENABLED(FIL_RUNOUT_PULLUP) && ENABLED(FIL_RUNOUT_PULLDOWN)
+  #error "Enable only one of FIL_RUNOUT_PULLUP or FIL_RUNOUT_PULLDOWN."
+#elif ENABLED(ENDSTOPPULLUP_XMAX) && ENABLED(ENDSTOPPULLDOWN_XMAX)
+  #error "Enable only one of ENDSTOPPULLUP_X_MAX or ENDSTOPPULLDOWN_X_MAX."
+#elif ENABLED(ENDSTOPPULLUP_YMAX) && ENABLED(ENDSTOPPULLDOWN_YMAX)
+  #error "Enable only one of ENDSTOPPULLUP_Y_MAX or ENDSTOPPULLDOWN_Y_MAX."
+#elif ENABLED(ENDSTOPPULLUP_ZMAX) && ENABLED(ENDSTOPPULLDOWN_ZMAX)
+  #error "Enable only one of ENDSTOPPULLUP_Z_MAX or ENDSTOPPULLDOWN_Z_MAX."
+#elif ENABLED(ENDSTOPPULLUP_XMIN) && ENABLED(ENDSTOPPULLDOWN_XMIN)
+  #error "Enable only one of ENDSTOPPULLUP_X_MIN or ENDSTOPPULLDOWN_X_MIN."
+#elif ENABLED(ENDSTOPPULLUP_YMIN) && ENABLED(ENDSTOPPULLDOWN_YMIN)
+  #error "Enable only one of ENDSTOPPULLUP_Y_MIN or ENDSTOPPULLDOWN_Y_MIN."
+#elif ENABLED(ENDSTOPPULLUP_ZMIN) && ENABLED(ENDSTOPPULLDOWN_ZMIN)
+  #error "Enable only one of ENDSTOPPULLUP_Z_MIN or ENDSTOPPULLDOWN_Z_MIN."
+#endif
+
 /**
  * Progress Bar
  */

Marlin/src/module/endstops.cpp

   #if HAS_X_MIN
     #if ENABLED(ENDSTOPPULLUP_XMIN)
       SET_INPUT_PULLUP(X_MIN_PIN);
+    #elif ENABLED(ENDSTOPPULLDOWN_XMIN)
+      SET_INPUT_PULLDOWN(X_MIN_PIN);
     #else
       SET_INPUT(X_MIN_PIN);
     #endif
   #if HAS_X2_MIN
     #if ENABLED(ENDSTOPPULLUP_XMIN)
       SET_INPUT_PULLUP(X2_MIN_PIN);
+    #elif ENABLED(ENDSTOPPULLDOWN_XMIN)
+      SET_INPUT_PULLDOWN(X2_MIN_PIN);
     #else
       SET_INPUT(X2_MIN_PIN);
     #endif
   #if HAS_Y_MIN
     #if ENABLED(ENDSTOPPULLUP_YMIN)
       SET_INPUT_PULLUP(Y_MIN_PIN);
+    #elif ENABLED(ENDSTOPPULLDOWN_YMIN)
+      SET_INPUT_PULLDOWN(Y_MIN_PIN);
     #else
       SET_INPUT(Y_MIN_PIN);
     #endif
   #if HAS_Y2_MIN
     #if ENABLED(ENDSTOPPULLUP_YMIN)
       SET_INPUT_PULLUP(Y2_MIN_PIN);
+    #elif ENABLED(ENDSTOPPULLDOWN_YMIN)
+      SET_INPUT_PULLDOWN(Y2_MIN_PIN);
     #else
       SET_INPUT(Y2_MIN_PIN);
     #endif
   #if HAS_Z_MIN
     #if ENABLED(ENDSTOPPULLUP_ZMIN)
       SET_INPUT_PULLUP(Z_MIN_PIN);
+    #elif ENABLED(ENDSTOPPULLDOWN_ZMIN)
+      SET_INPUT_PULLDOWN(Z_MIN_PIN);
     #else
       SET_INPUT(Z_MIN_PIN);
     #endif
   #if HAS_Z2_MIN
     #if ENABLED(ENDSTOPPULLUP_ZMIN)
       SET_INPUT_PULLUP(Z2_MIN_PIN);
+    #elif ENABLED(ENDSTOPPULLDOWN_ZMIN)
+      SET_INPUT_PULLDOWN(Z2_MIN_PIN);
     #else
       SET_INPUT(Z2_MIN_PIN);
     #endif
   #if HAS_X_MAX
     #if ENABLED(ENDSTOPPULLUP_XMAX)
       SET_INPUT_PULLUP(X_MAX_PIN);
+    #elif ENABLED(ENDSTOPPULLDOWN_XMAX)
+      SET_INPUT_PULLDOWN(X_MAX_PIN);
     #else
       SET_INPUT(X_MAX_PIN);
     #endif
   #if HAS_X2_MAX
     #if ENABLED(ENDSTOPPULLUP_XMAX)
       SET_INPUT_PULLUP(X2_MAX_PIN);
+    #elif ENABLED(ENDSTOPPULLDOWN_XMAX)
+      SET_INPUT_PULLDOWN(X2_MAX_PIN);
     #else
       SET_INPUT(X2_MAX_PIN);
     #endif
   #if HAS_Y_MAX
     #if ENABLED(ENDSTOPPULLUP_YMAX)
       SET_INPUT_PULLUP(Y_MAX_PIN);
+    #elif ENABLED(ENDSTOPPULLDOWN_YMAX)
+      SET_INPUT_PULLDOWN(Y_MAX_PIN);
     #else
       SET_INPUT(Y_MAX_PIN);
     #endif
   #if HAS_Y2_MAX
     #if ENABLED(ENDSTOPPULLUP_YMAX)
       SET_INPUT_PULLUP(Y2_MAX_PIN);
+    #elif ENABLED(ENDSTOPPULLDOWN_YMAX)
+      SET_INPUT_PULLDOWN(Y2_MAX_PIN);
     #else
       SET_INPUT(Y2_MAX_PIN);
     #endif
   #if HAS_Z_MAX
     #if ENABLED(ENDSTOPPULLUP_ZMAX)
       SET_INPUT_PULLUP(Z_MAX_PIN);
+    #elif ENABLED(ENDSTOPPULLDOWN_ZMAX)
+      SET_INPUT_PULLDOWN(Z_MAX_PIN);
     #else
       SET_INPUT(Z_MAX_PIN);
     #endif
   #if HAS_Z2_MAX
     #if ENABLED(ENDSTOPPULLUP_ZMAX)
       SET_INPUT_PULLUP(Z2_MAX_PIN);
+    #elif ENABLED(ENDSTOPPULLDOWN_ZMAX)
+      SET_INPUT_PULLDOWN(Z2_MAX_PIN);
     #else
       SET_INPUT(Z2_MAX_PIN);
     #endif
   #if ENABLED(Z_MIN_PROBE_ENDSTOP)
     #if ENABLED(ENDSTOPPULLUP_ZMIN_PROBE)
       SET_INPUT_PULLUP(Z_MIN_PROBE_PIN);
+    #elif ENABLED(ENDSTOPPULLDOWN_ZMIN_PROBE)
+      SET_INPUT_PULLDOWN(Z_MIN_PROBE_PIN);
     #else
       SET_INPUT(Z_MIN_PROBE_PIN);
     #endif