I got these vibration alarms, but they're far too sensitive to leave as is.
I want to use HomeAssistant or something to get a notification and decide whether to trigger the alarm, and maybe do some additional processing to rule out false positives.
So I want to either desolder that chip and wire voltage/ground/io pins from an ESP32 board or at least just use the same chip and board, but intercept the inputs to the speaker and just send that to an ESP32 board instead, then wire outputs from the ESP32 back to the speaker.
I'm not sure what component is in the middle with the "1 -F-" on it, or how to wire this at all. I'm guessing a BJT or something to boost the speaker?
If anyone can see a way to do it without that chip on the board, that would probably be preferable to lower battery consumption, but otherwise, intercepting the speaker would do.
