3 ms·

I don’t know how that can be true. Can you tell us more?

• seba_dos1 4y ago
  I'm considering making an OpenTherm controller for my heating boiler, I just researched this topic a few days ago - it's absolutely true, there are ready-made Arduino libraries for that.
• horsawlarway 4y ago
  It's incredibly easy to do (caveat - at least if you're familiar with software dev already). Most thermostats are literally just digital thermometers that control a relay that turns the furnace/ac on and off. A simple arduino (or much cheaper IC) can easily do the same thing if you wire it in. And then on the software side... there's several large, open-source projects that exist in this space and provide nice api tooling for interacting with those devices. Things like: OpenHab: https://www.openhab.org/ https://www.openhab.org/ HomeAssistant: https://www.home-assistant.io/ https://www.home-assistant.io/ HomeBridge: https://homebridge.io/ https://homebridge.io/ etc... Even Alexa has basically drop-in self hosted alternatives like Mycroft: https://mycroft.ai/ https://mycroft.ai/ or ADA/Almomd (now Genie) https://genie.stanford.edu/ https://genie.stanford.edu/ It's not only true - I strongly suspect you can do it for much less than 50 bucks if you don't need the physical thermostat to have buttons/screens.
  • xcambar 4y ago
    Makes sense. My setup doesn't allow for that. Hence my ignorance. Good for you!