Init old_red to 127 to ensure initial change

Fix #10012
7 years ago · 42608b1925
1 changed files with 1 additions and 1 deletions
--- a/Marlin/src/gcode/temperature/M140_M190.cpp
+++ b/Marlin/src/gcode/temperature/M140_M190.cpp
@ -94,7 +94,7 @@ void GcodeSuite::M190() {

  #if ENABLED(PRINTER_EVENT_LEDS)
    const float start_temp = thermalManager.degBed();
-    uint8_t old_red = 255;
+    uint8_t old_red = 127;
  #endif

  do {