My solution was to attach a little board from https://www.particle.io/ https://www.particle.io/ to a doorbell ringer to detect when the doorbell rings, which po

My solution was to attach a little board from https://www.particle.io/ https://www.particle.io/ to a doorbell ringer to detect when the doorbell rings, which pokes a port on a PC in my office that is always on anyway. The PC uses ffmpeg to play a sound.