✅ Compatible With:
- 
Pixhawk 1 / 2.4.6 / 2.4.8 
- 
PX4 and other flight controllers with a standard buzzer port 
🛠️ Uses:
- 
Pre-arm checks 
- 
GPS fix confirmation 
- 
Arming/disarming notifications 
- 
Battery or failsafe alerts 
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