One thing I've been wanting to do for a while is to use a Digispark to help replace one of our garage door remotes. I figured I could use a NRF24L01 (or perhaps a Bluetooth module), and just tap into the wires for the existing wall switch inside the garage.
My first thought was to use a relay, but is there any reason I couldn't use a MOSFET? Either way, I should just be able to wire it in parallel with the existing switch, and trigger the connection briefly to open/close the door.
