✨ BIQU MicroProbe (#26527)

Marlin/Configuration.h

@@ -1446,6 +1446,17 @@
   //#define BD_SENSOR_PROBE_NO_STOP // Probe bed without stopping at each probe point
 #endif
 
+/**
+ * BIQU MicroProbe
+ *
+ * A lightweight, solenoid-driven probe.
+ * For information about this sensor https://github.com/bigtreetech/MicroProbe
+ *
+ * Also requires: PROBE_ENABLE_DISABLE
+ */
+//#define BIQU_MICROPROBE_V1  // Triggers HIGH
+//#define BIQU_MICROPROBE_V2  // Triggers LOW
+
 // A probe that is deployed and stowed with a solenoid pin (SOL1_PIN)
 //#define SOLENOID_PROBE
 

Marlin/src/core/utility.cpp

@@ -80,6 +80,8 @@ void safe_delay(millis_t ms) {
       TERN_(Z_PROBE_ALLEN_KEY, "Z_PROBE_ALLEN_KEY")
       TERN_(SOLENOID_PROBE, "SOLENOID_PROBE")
       TERN_(MAGLEV4, "MAGLEV4")
+      TERN_(BIQU_MICROPROBE_V1, "BIQU_MICROPROBE_V1")
+      TERN_(BIQU_MICROPROBE_V2, "BIQU_MICROPROBE_V2")
       IF_DISABLED(PROBE_SELECTED, "NONE")
     );
 

Marlin/src/inc/Conditionals_LCD.h

@@ -1169,7 +1169,7 @@
 /**
  * Set flags for any form of bed probe
  */
-#if ANY(TOUCH_MI_PROBE, Z_PROBE_ALLEN_KEY, HAS_Z_SERVO_PROBE, SOLENOID_PROBE, Z_PROBE_SLED, RACK_AND_PINION_PROBE, SENSORLESS_PROBING, MAGLEV4, MAG_MOUNTED_PROBE)
+#if ANY(TOUCH_MI_PROBE, Z_PROBE_ALLEN_KEY, HAS_Z_SERVO_PROBE, SOLENOID_PROBE, Z_PROBE_SLED, RACK_AND_PINION_PROBE, SENSORLESS_PROBING, MAGLEV4, MAG_MOUNTED_PROBE, BIQU_MICROPROBE_V1, BIQU_MICROPROBE_V2)
   #define HAS_STOWABLE_PROBE 1
 #endif
 #if ANY(HAS_STOWABLE_PROBE, FIX_MOUNTED_PROBE, BD_SENSOR, NOZZLE_AS_PROBE)

Marlin/src/inc/SanityCheck.h

@@ -1206,8 +1206,8 @@ static_assert(NUM_SERVOS <= NUM_SERVO_PLUGS, "NUM_SERVOS (or some servo index) i
  */
 #if 1 < 0 \
   + (DISABLED(BLTOUCH) && HAS_Z_SERVO_PROBE) \
-  + COUNT_ENABLED(PROBE_MANUALLY, BLTOUCH, BD_SENSOR, FIX_MOUNTED_PROBE, NOZZLE_AS_PROBE, TOUCH_MI_PROBE, SOLENOID_PROBE, Z_PROBE_ALLEN_KEY, Z_PROBE_SLED, RACK_AND_PINION_PROBE, SENSORLESS_PROBING, MAGLEV4, MAG_MOUNTED_PROBE)
+  + COUNT_ENABLED(PROBE_MANUALLY, BLTOUCH, BD_SENSOR, FIX_MOUNTED_PROBE, NOZZLE_AS_PROBE, TOUCH_MI_PROBE, SOLENOID_PROBE, Z_PROBE_ALLEN_KEY, Z_PROBE_SLED, RACK_AND_PINION_PROBE, SENSORLESS_PROBING, MAGLEV4, MAG_MOUNTED_PROBE, BIQU_MICROPROBE_V1, BIQU_MICROPROBE_V2)
-  #error "Please enable only one probe option: PROBE_MANUALLY, SENSORLESS_PROBING, BLTOUCH, BD_SENSOR, FIX_MOUNTED_PROBE, NOZZLE_AS_PROBE, TOUCH_MI_PROBE, SOLENOID_PROBE, Z_PROBE_ALLEN_KEY, Z_PROBE_SLED, MAGLEV4, MAG_MOUNTED_PROBE or Z Servo."
+  #error "Please enable only one probe option: PROBE_MANUALLY, SENSORLESS_PROBING, BLTOUCH, BD_SENSOR, FIX_MOUNTED_PROBE, NOZZLE_AS_PROBE, TOUCH_MI_PROBE, SOLENOID_PROBE, Z_PROBE_ALLEN_KEY, Z_PROBE_SLED, MAGLEV4, MAG_MOUNTED_PROBE, BIQU_MICROPROBE_V1, BIQU_MICROPROBE_V2, or Z Servo."
 #endif
 
 #if HAS_BED_PROBE
@@ -1375,6 +1375,53 @@ static_assert(NUM_SERVOS <= NUM_SERVO_PLUGS, "NUM_SERVOS (or some servo index) i
     #endif
   #endif
 
+  /**
+   * BIQU MicroProbe requirements
+   */
+  #if ANY(BIQU_MICROPROBE_V1, BIQU_MICROPROBE_V2)
+    #if DISABLED(PROBE_ENABLE_DISABLE)
+      #error "BIQU MicroProbe requires PROBE_ENABLE_DISABLE."
+    #elif !PIN_EXISTS(PROBE_ENABLE)
+      #error "BIQU MicroProbe requires a PROBE_ENABLE_PIN."
+    #endif
+
+    #if ENABLED(BIQU_MICROPROBE_V1)
+      #if ENABLED(INVERTED_PROBE_STATE)
+        #if Z_MIN_PROBE_ENDSTOP_HIT_STATE != LOW
+          #error "BIQU_MICROPROBE_V1 requires Z_MIN_PROBE_ENDSTOP_HIT_STATE LOW."
+        #endif
+      #elif Z_MIN_PROBE_ENDSTOP_HIT_STATE != HIGH
+        #error "BIQU_MICROPROBE_V1 requires Z_MIN_PROBE_ENDSTOP_HIT_STATE HIGH."
+      #endif
+      #if ENABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN)
+        #if ENABLED(INVERTED_PROBE_STATE)
+          #if Z_MIN_ENDSTOP_HIT_STATE != LOW
+            #error "BIQU_MICROPROBE_V1 requires Z_MIN_ENDSTOP_HIT_STATE LOW."
+          #endif
+        #elif Z_MIN_ENDSTOP_HIT_STATE != HIGH
+          #error "BIQU_MICROPROBE_V1 requires Z_MIN_ENDSTOP_HIT_STATE HIGH."
+        #endif
+      #endif
+    #elif ENABLED(BIQU_MICROPROBE_V2)
+      #if ENABLED(INVERTED_PROBE_STATE)
+        #if Z_MIN_PROBE_ENDSTOP_HIT_STATE != HIGH
+          #error "BIQU_MICROPROBE_V2 requires Z_MIN_PROBE_ENDSTOP_HIT_STATE HIGH."
+        #endif
+      #elif Z_MIN_PROBE_ENDSTOP_HIT_STATE != LOW
+        #error "BIQU_MICROPROBE_V2 requires Z_MIN_PROBE_ENDSTOP_HIT_STATE LOW."
+      #endif
+      #if ENABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN)
+        #if ENABLED(INVERTED_PROBE_STATE)
+          #if Z_MIN_ENDSTOP_HIT_STATE != HIGH
+            #error "BIQU_MICROPROBE_V2 requires Z_MIN_ENDSTOP_HIT_STATE HIGH."
+          #endif
+        #elif Z_MIN_ENDSTOP_HIT_STATE != LOW
+          #error "BIQU_MICROPROBE_V2 requires Z_MIN_ENDSTOP_HIT_STATE LOW."
+        #endif
+      #endif
+    #endif
+  #endif // BIQU_MICROPROBE_V1 || BIQU_MICROPROBE_V2
+
   /**
    * Require pin options and pins to be defined
    */

Marlin/src/pins/esp32/pins_MKS_TINYBEE.h

@@ -53,6 +53,13 @@
 #define Z_STOP_PIN                            22
 //#define FIL_RUNOUT_PIN                      35
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Enable I2S stepper stream
 //

Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_3.h

@@ -96,6 +96,13 @@
   #define Z_MIN_PROBE_PIN                  P1_24
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h

@@ -134,6 +134,13 @@
   #define Z_MIN_PROBE_PIN                  P0_10
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/lpc1768/pins_MKS_SBASE.h

@@ -63,6 +63,13 @@
   #define Z_MIN_PROBE_PIN                  P4_28  // Connector J8
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/lpc1768/pins_MKS_SGEN_L.h

@@ -95,6 +95,13 @@
   #define Z_MIN_PROBE_PIN                  P1_24
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/lpc1769/pins_BTT_SKR_E3_TURBO.h

@@ -66,6 +66,13 @@
   #define Z_MIN_PROBE_PIN                  P1_22
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/lpc1769/pins_MKS_SGEN_L_V2.h

@@ -103,6 +103,13 @@
   #define Z_MIN_PROBE_PIN                  P1_24
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/ramps/pins_K8400.h

@@ -58,7 +58,7 @@
 //
 #define FAN0_PIN                               8
 
-#if ANY(BLTOUCH, TOUCH_MI_PROBE)
+#if ANY(BLTOUCH, TOUCH_MI_PROBE, BIQU_MICROPROBE_V1, BIQU_MICROPROBE_V2)
   #define INVERTED_PROBE_STATE
 #endif
 

Marlin/src/pins/stm32f1/pins_BTT_SKR_E3_DIP.h

@@ -55,6 +55,13 @@
 //
 #define Z_MIN_PROBE_PIN                     PC14  // PROBE
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/stm32f1/pins_BTT_SKR_MINI_E3_common.h

@@ -55,6 +55,13 @@
 //
 #define Z_MIN_PROBE_PIN                     PC14  // PROBE
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/stm32f1/pins_CREALITY_V24S1_301.h

@@ -60,6 +60,13 @@
   #define Z_MIN_PROBE_PIN                   PC14  // BLTouch IN
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/stm32f1/pins_CREALITY_V25S1.h

@@ -63,11 +63,16 @@
 #define Y_STOP_PIN                          PC5
 #define Z_STOP_PIN                          PC15
 
+//
+// Probe
+//
 #if ENABLED(BLTOUCH)
   #define SERVO0_PIN                        PC14  // BLTouch OUT PIN
 #elif ENABLED(PROBE_ACTIVATION_SWITCH)
   #define PROBE_TARE_PIN                    PC14
   #define PROBE_ACTIVATION_SWITCH_PIN       PB2
+#elif ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN                  PC14
 #endif
 
 //

Marlin/src/pins/stm32f1/pins_CREALITY_V4.h

@@ -92,6 +92,13 @@
   #define Z_MIN_PROBE_PIN                   PB1   // BLTouch IN
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/stm32f1/pins_CREALITY_V4210.h

@@ -76,6 +76,13 @@
   #define Z_MIN_PROBE_PIN                   PA5   // BLTouch IN
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/stm32f1/pins_CREALITY_V521.h

@@ -77,6 +77,13 @@
   #define Z_MIN_PROBE_PIN                   PD12  // BLTouch IN
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/stm32f1/pins_MKS_ROBIN.h

@@ -76,6 +76,13 @@
 #define Z_MIN_PIN                           PA4
 #define Z_MAX_PIN                           PF7
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/stm32f1/pins_MKS_ROBIN_E3P.h

@@ -80,6 +80,13 @@
 #define Z_MIN_PIN                           PA11
 #define Z_MAX_PIN                           PC4
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/stm32f1/pins_MKS_ROBIN_E3_common.h

@@ -64,6 +64,13 @@
   #define Z_MIN_PROBE_PIN                   PB1
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/stm32f1/pins_MKS_ROBIN_LITE3.h

@@ -54,6 +54,13 @@
 #define Z_MIN_PIN                           PC6
 #define Z_MAX_PIN                           PB1
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/stm32f1/pins_MKS_ROBIN_MINI.h

@@ -71,6 +71,13 @@
   #define FIL_RUNOUT_PIN                    PA4   // MT_DET
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/stm32f1/pins_MKS_ROBIN_NANO_V2.h

@@ -83,6 +83,13 @@
 #define Z_MIN_PIN                           PA11
 #define Z_MAX_PIN                           PC4
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/stm32f1/pins_MKS_ROBIN_NANO_common.h

@@ -69,6 +69,13 @@
   #define Z_MIN_PIN                         PB11
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/stm32f1/pins_MKS_ROBIN_PRO.h

@@ -60,6 +60,13 @@
 #define Z_MIN_PIN                           PA11
 #define Z_MAX_PIN                           PC4
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/stm32f4/pins_BTT_E3_RRF.h

@@ -59,6 +59,13 @@
 //
 #define Z_MIN_PROBE_PIN                     PC5   // PROBE
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/stm32f4/pins_BTT_GTR_V1_0.h

@@ -127,6 +127,13 @@
   #define Z_MIN_PROBE_PIN                   PH11  // Z Probe must be PH11
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/stm32f4/pins_BTT_OCTOPUS_V1_common.h

@@ -120,6 +120,13 @@
   #define Z_MIN_PROBE_PIN                   PB7
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/stm32f4/pins_BTT_SKR_MINI_E3_V3_0_1.h

@@ -69,6 +69,13 @@
 //
 #define Z_MIN_PROBE_PIN                     PA1   // PROBE
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/stm32f4/pins_BTT_SKR_PRO_common.h

@@ -113,6 +113,13 @@
   #define Z_MIN_PROBE_PIN                   PA2
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/stm32f4/pins_CREALITY_CR4NTXXC10.h

@@ -86,6 +86,13 @@
   #define Z_MIN_PROBE_PIN                   PB1   // BLTouch IN
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/stm32f4/pins_MELLOW_FLY_E3_V2.h

@@ -96,11 +96,9 @@
 //
 // Probe enable
 //
-#if ENABLED(PROBE_ENABLE_DISABLE)
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
-  #ifndef PROBE_ENABLE_PIN
   #define PROBE_ENABLE_PIN            SERVO0_PIN
 #endif
-#endif
 
 //
 // Steppers

Marlin/src/pins/stm32f4/pins_MKS_MONSTER8_common.h

@@ -67,6 +67,13 @@
 #define Z_MIN_PIN                           PB13
 #define Z_MAX_PIN                           PB12
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/stm32f4/pins_MKS_ROBIN2.h

@@ -37,6 +37,13 @@
 
 #define SRAM_EEPROM_EMULATION
 
+//
+// Servos
+//
+#define SERVO0_PIN                          PB0   // XS2-5
+#define SERVO1_PIN                          PF7   // XS1-5
+#define SERVO2_PIN                          PF8   // XS1-6
+
 //
 // Limit Switches
 //
@@ -48,11 +55,11 @@
 #define Z_MAX_PIN                           PG3
 
 //
-// Servos
+// Probe enable
 //
-#define SERVO0_PIN                          PB0   // XS2-5
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
-#define SERVO1_PIN                          PF7   // XS1-5
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
-#define SERVO2_PIN                          PF8   // XS1-6
+#endif
 
 //
 // Steppers

Marlin/src/pins/stm32f4/pins_MKS_ROBIN_NANO_V3_common.h

@@ -64,6 +64,13 @@
 #define Z_MIN_PIN                     Z_DIAG_PIN
 #define Z_MAX_PIN                    E0_DIAG_PIN
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/stm32f4/pins_MKS_ROBIN_PRO_V2.h

@@ -74,6 +74,13 @@
   #define FIL_RUNOUT_PIN                    PA4   // MT_DET
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/stm32f4/pins_MKS_SKIPR_V1_0.h

@@ -101,6 +101,13 @@
   #endif
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //

Marlin/src/pins/stm32g0/pins_BTT_SKR_MINI_E3_V3_0.h

@@ -63,6 +63,13 @@
 //
 #define Z_MIN_PROBE_PIN                     PC14  // PROBE
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/stm32h7/pins_BTT_OCTOPUS_MAX_EZ.h

@@ -120,6 +120,13 @@
   #define Z_MIN_PROBE_PIN                   PB15
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/stm32h7/pins_BTT_OCTOPUS_PRO_V1_common.h

@@ -124,6 +124,13 @@
   #endif
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //

Marlin/src/pins/stm32h7/pins_BTT_SKR_SE_BX_common.h

@@ -62,6 +62,13 @@
   #define Z_MIN_PROBE_PIN                   PH2   // Probe
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE) && !defined(PROBE_ENABLE_PIN)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Steppers
 //