🚑️ BTT Octopus Step Timer (#21901)

Marlin/src/pins/stm32f4/pins_BTT_OCTOPUS_V1_0.h

 // USB Flash Drive support
 #define HAS_OTG_USB_HOST_SUPPORT
 
+// Avoid conflict with TIMER_TONE
+#define STEP_TIMER                            10
+
 //
 // Servos
 #define SERVO0_PIN                          PB6