Arduino Library for BLE communication: https://github.com/T-vK/ESP32-BLE-Keyboard
I'm using this buzzer as a trigger for a photobooth. It is programmed to send a enter signal via bluetooth to the raspberry pi, running the photobooth software (https://photoboothproject.github.io).
Since there are "Grobhandtaster" which are pretty expensive, I created a model to print with a 3D printer.
Link to onShape: https://cad.onshape.com/documents/db4d39519c299b7e34d5dfd3/w/d993b98b9122bbd27a95ed53/e/5e120b5bba915086d26ab841
Link to MakerWorld: https://makerworld.com/en/models/37491
