✨ Support for BIQU B1-SE-Plus strain gauge probe (#23101)

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

Marlin/Configuration.h

@@ -1220,6 +1220,15 @@
   #endif
 #endif
 
+/**
+ * Probe Enable / Disable
+ * The probe only provides a triggered signal when enabled.
+ */
+//#define PROBE_ENABLE_DISABLE
+#if ENABLED(PROBE_ENABLE_DISABLE)
+  //#define PROBE_ENABLE_PIN -1   // Override the default pin here
+#endif
+
 /**
  * Multiple Probing
  *

Marlin/src/module/endstops.cpp

@@ -392,6 +392,9 @@ void Endstops::not_homing() {
 #if HAS_BED_PROBE
   void Endstops::enable_z_probe(const bool onoff) {
     z_probe_enabled = onoff;
+    #if PIN_EXISTS(PROBE_ENABLE)
+      WRITE(PROBE_ENABLE_PIN, onoff);
+    #endif
     resync();
   }
 #endif

Marlin/src/pins/pinsDebug_list.h

@@ -1439,6 +1439,15 @@
 #if PIN_EXISTS(Z_MIN_PROBE)
   REPORT_NAME_DIGITAL(__LINE__, Z_MIN_PROBE_PIN)
 #endif
+#if PIN_EXISTS(PROBE_ACTIVATION_SWITCH)
+  REPORT_NAME_DIGITAL(__LINE__, PROBE_ACTIVATION_SWITCH_PIN)
+#endif
+#if PIN_EXISTS(PROBE_ENABLE)
+  REPORT_NAME_DIGITAL(__LINE__, PROBE_ENABLE_PIN)
+#endif
+#if PIN_EXISTS(PROBE_TARE)
+  REPORT_NAME_DIGITAL(__LINE__, PROBE_TARE_PIN)
+#endif
 #if PIN_EXISTS(I_ATT)
   REPORT_NAME_DIGITAL(__LINE__, I_ATT_PIN)
 #endif

Marlin/src/pins/stm32f1/pins_BTT_SKR_CR6.h

@@ -71,7 +71,9 @@
 // Probe
 //
 #define PROBE_TARE_PIN                      PA1
+#if ENABLED(PROBE_ACTIVATION_SWITCH)
   #define PROBE_ACTIVATION_SWITCH_PIN       PC2   // Optoswitch to Enable Z Probe
+#endif
 
 //
 // Steppers

Marlin/src/pins/stm32f1/pins_CREALITY_V452.h

@@ -34,6 +34,9 @@
 #define HEATER_0_PIN                        PA1   // HEATER1
 #define HEATER_BED_PIN                      PA2   // HOT BED
 #define FAN_PIN                             PA0   // FAN
+
+#if ENABLED(PROBE_ACTIVATION_SWITCH)
   #define PROBE_ACTIVATION_SWITCH_PIN       PC6   // Optoswitch to Enable Z Probe
+#endif
 
 #include "pins_CREALITY_V45x.h"

Marlin/src/pins/stm32f1/pins_CREALITY_V453.h

@@ -34,6 +34,9 @@
 #define HEATER_0_PIN                        PB14  // HEATER1
 #define HEATER_BED_PIN                      PB13  // HOT BED
 #define FAN_PIN                             PB15  // FAN
+
+#if ENABLED(PROBE_ACTIVATION_SWITCH)
   #define PROBE_ACTIVATION_SWITCH_PIN       PB2   // Optoswitch to Enable Z Probe
+#endif
 
 #include "pins_CREALITY_V45x.h"

Marlin/src/pins/stm32f4/pins_BTT_SKR_V2_0_common.h

@@ -132,6 +132,13 @@
   #define Z_MIN_PROBE_PIN                   PE4
 #endif
 
+//
+// Probe enable
+//
+#if ENABLED(PROBE_ENABLE_DISABLE)
+  #define PROBE_ENABLE_PIN            SERVO0_PIN
+#endif
+
 //
 // Filament Runout Sensor
 //