My buzzer quit working and I discovered the positive wire had come off the board. When I tried to solder it on again I discovered that there was no shiny spot to solder to. When the wire came off, it must have removed the contact coating on the board. Am I screwed? Or, is there a work around?

A picture of the damage would be helpful.......

i think you might be able to remap the buzzer pin to a spare pin?
https://github.com/betaflight/betaflight...-remapping

what FC do you have?

(26-Sep-2017, 06:32 PM)Oscar Wrote: i think you might be able to remap the buzzer pin to a spare pin?
https://github.com/betaflight/betaflight...-remapping

what FC do you have?

That's one you can't re-map. The buzzer pin drives a transistor as the current used by the buzzer is more than the MCU can source or sink.

It might be possible to use BEC for the 5V lead for buzzer and the neg connected to FC buzzer pad. The switching for buzzer is on the neg pad.

If its really a pad on which to connect see if you can scrape the trace leading there and solder onto that, might need a higher guage wire to make sure the wire is small enough and increase your chance of succes.

The board is the Redrotor V1. I tried to solder to the trace with no success. I ordered another board and will fix the wires with Goop to the board so they can't come off so easily. Thanks for the help.

Now I come to think of it, the new Betaflight support DSHOT commands, if your ESC do aswell you can use your motors for a beep.