shut steppe
How would you use a model-finding Beeper, like a ViFly Finder V2, directly with an ELRS (PWM) receiver, and no Flight Controller.?
I've always used the flight controller Bz output to drive these, but wonder if I can configure an unused PWM pin (Radiomaster ERC5) to drive the buzzer either from a radio channel or driven on Failsafe.
The Finder will beep if power is lost, but if power stays connected, I need some way to drive it to beep. It expects a Bz- (low/high) GPIO input, ideally pulsed to be more audible.