3 ms·
I inherited a 1980's model AC/Furnace and controlling the AC at least is extremely simple and cheap. A 12V relay in the compressor housing activating the 220V s
by omvtam 4y ago
I inherited a 1980's model AC/Furnace and controlling the AC at least is extremely simple and cheap. A 12V relay in the compressor housing activating the 220V switch, connected to another relay controlled by a Pi zero which is controlled by yet another PI zero with a $10 DHT 22. A bash script check the temp and activates the compressor via SSh when the temp goes above 74F. The furnace control hasn't died yet so I haven't bothered replacing it.
Putting the cooling system on IoT total cost = ~ $100
- karaterobot 4y agoWhat if you charged someone to build and install the same system in their house? You'd probably charge a lot more than $100, and that's what the real cost would be for most people.
- bee_rider 4y agoNobody has suggested professional installation though, the original suggestion was just a nice home automatic project to play with.