Not sure if this should go here or in Customization…
I’m trying to better manage a setup for a small computer room and think I might could make the HestiaPi work with some coding work, which I can probably figure out. I’ve never used openHAB though but the coding doesn’t look too bad.
I just wanted to see if I’m crazy or if this sounded feasible. I see the version on the crowd funded page has four relays. I would like to use one for dehumidify (a standard feature it looks like), one for free cooling, and the other two for two stages of cooling.
I don’t see anything for “free cooling” and about the only commercial thermostat I’ve seen with this is some from Venstar. It wouldn’t have to be a “stage” in my case, but essentially monitor the outside temperature, and it’s below the room temperature by a few degrees, activate the free cooling damper/fan. I know I’d need to interface an outside temp probe but that looks fairly easy to do. The main thing would be the coding but it’s pretty simple logic.
For the two stages of cooling, I don’t see why the heating stages can’t be “inverted” so to speak to work for the cooling instead.
Does this sound like a doable project?