✨ Bed Distance Sensor (#24554)

Marlin/src/gcode/calibrate/G28.cpp

@@ -36,6 +36,10 @@
   #include "../../feature/bedlevel/bedlevel.h"
 #endif
 
+#if ENABLED(BD_SENSOR)
+  #include "../../feature/bedlevel/bdl/bdl.h"
+#endif
+
 #if ENABLED(SENSORLESS_HOMING)
   #include "../../feature/tmc_util.h"
 #endif
@@ -202,7 +206,9 @@ void GcodeSuite::G28() {
   DEBUG_SECTION(log_G28, "G28", DEBUGGING(LEVELING));
   if (DEBUGGING(LEVELING)) log_machine_info();
 
-  /*
+  TERN_(BD_SENSOR, bdl.config_state = 0);
+
+  /**
    * Set the laser power to false to stop the planner from processing the current power setting.
    */
   #if ENABLED(LASER_FEATURE)

Marlin/src/gcode/gcode.cpp

@@ -577,6 +577,10 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
         case 100: M100(); break;                                  // M100: Free Memory Report
       #endif
 
+      #if ENABLED(BD_SENSOR)
+        case 102: M102(); break;                                  // M102: Configure Bed Distance Sensor
+      #endif
+
       #if HAS_EXTRUDERS
         case 104: M104(); break;                                  // M104: Set hot end temperature
         case 109: M109(); break;                                  // M109: Wait for hotend temperature to reach target

Marlin/src/gcode/gcode.h

@@ -132,6 +132,8 @@
  *
  * M100 - Watch Free Memory (for debugging) (Requires M100_FREE_MEMORY_WATCHER)
  *
+ * M102 - Configure Bed Distance Sensor. (Requires BD_SENSOR)
+ *
  * M104 - Set extruder target temp.
  * M105 - Report current temperatures.
  * M106 - Set print fan speed.
@@ -705,6 +707,11 @@ private:
     static void M100();
   #endif
 
+  #if ENABLED(BD_SENSOR)
+    static void M102();
+    static void M102_report(const bool forReplay=true);
+  #endif
+
   #if HAS_EXTRUDERS
     static void M104_M109(const bool isM109);
     FORCE_INLINE static void M104() { M104_M109(false); }

Marlin/src/gcode/probe/M102.cpp

@@ -0,0 +1,57 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * M102.cpp - Configure Bed Distance Sensor
+ */
+
+#include "../../inc/MarlinConfig.h"
+
+#if ENABLED(BD_SENSOR)
+
+#include "../gcode.h"
+#include "../../feature/bedlevel/bdl/bdl.h"
+
+/**
+ * M102: Configure the Bed Distance Sensor
+ *
+ *   M102 S<10ths> : Set adjustable Z height in 10ths of a mm (e.g., 'M102 S4' enables adjusting for Z <= 0.4mm.)
+ *   M102 S0       : Disable adjustable Z height.
+ *
+ * Negative S values are commands:
+ *   M102 S-1       : Read sensor information
+ *   M102 S-5       : Read raw Calibration data
+ *   M102 S-6       : Start Calibration
+ */
+void GcodeSuite::M102() {
+  if (parser.seenval('S'))
+    bdl.config_state = parser.value_int();
+  else
+    M102_report();
+}
+
+void GcodeSuite::M102_report(const bool forReplay/*=true*/) {
+  report_heading(forReplay, F("Bed Distance Sensor"));
+  SERIAL_ECHOLNPGM("  M102 S", bdl.config_state);
+}
+
+#endif // BD_SENSOR