I have 2 Led and Buzzer.
Led sequence is OK (GPS fix and Motors), but buzzer is always beep-beeping as soon as µBrain is On. When I arm the motors Beep sequence is OK but Beeping is stil there.
Is there a condition trigging Alarm?
Fence is Off, GPS 3D fix check is Off. Battery is 3S and voltage monitoring (Pin10, 10.1 multiplier) seems correct.
Problem solved: Buzzer alarm was due to missing ground line on voltage monitoring.
Next work: integrate all incoming/outcoming wiring on a common circuit to solve clutter. I need to sort that spaghetti salad... ;)