We have a parameter which can supply a pin number
@ -263,9 +263,7 @@ void AP_Notify::add_backends(void)
// ChibiOS noise makers
#if CONFIG_HAL_BOARD == HAL_BOARD_CHIBIOS
#ifdef HAL_BUZZER_PIN
ADD_BACKEND(new Buzzer());
#endif
#ifdef HAL_PWM_ALARM
ADD_BACKEND(new AP_ToneAlarm());