Disable laser power when PWM goes to 0

7 years ago · 98c1265e3b
parent 68f2d95f76
commit 98c1265e3b
1 changed files with 1 additions and 0 deletions
--- a/Marlin/src/gcode/control/M3-M5.cpp
+++ b/Marlin/src/gcode/control/M3-M5.cpp
@ -103,6 +103,7 @@ void GcodeSuite::M3_M4(bool is_M3) {
      const float spindle_laser_power = parser.floatval('S');
      if (spindle_laser_power == 0) {
        WRITE(SPINDLE_LASER_ENABLE_PIN, !SPINDLE_LASER_ENABLE_INVERT);                                    // turn spindle off (active low)
+        analogWrite(SPINDLE_LASER_PWM_PIN, SPINDLE_LASER_PWM_INVERT ? 255 : 0);                           // only write low byte
        delay_for_power_down();
      }
      else {