✨ STARTUP_TUNE configuration

Marlin/Configuration.h

@@ -2681,6 +2681,18 @@
 //#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 2
 //#define LCD_FEEDBACK_FREQUENCY_HZ 5000
 
+//
+// Tone queue size, used to keep beeps from blocking execution.
+// Default is 4, or override here. Costs 4 bytes of SRAM per entry.
+//
+//#define TONE_QUEUE_LENGTH 4
+
+//
+// A sequence of tones to play at startup, in pairs of tone (Hz), duration (ms).
+// Silence in-between tones.
+//
+//#define STARTUP_TUNE { 698, 300, 0, 50, 523, 50, 0, 25, 494, 50, 0, 25, 523, 100, 0, 50, 554, 300, 0, 100, 523, 300 }
+
 //=============================================================================
 //======================== LCD / Controller Selection =========================
 //========================   (Character-based LCDs)   =========================