In our newly-renovated house the Kidde's CO2- and CO-detectors are everywhere. They are also all interconnected, which means there is a wire running throughout the house already. The detectors came straight from Home Depot - you must've seen them.
I'm wondering, what standard/protocol is used for the interconnection? Is there any chance, it is the 1-wire, perhaps? Even if not, can 1-wire devices be attached to it?
I have two immediate applications in mind:
- Help myself figure out, which of these bastards thinks, it detected "carbon monoxide" - when one does, it tells the others and they all begin to scream.
- Help identify, which one needs its backup-battery replaced - identifying, which one is beeping periodically, is currently a sport...
- Add cheap temperature and other sensors to the "bus" provided by the interconnect wire.