• AtHeartEngineer@lemmy.world
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    4 hours ago

    My new line is “it needs to be flashable”. I just got rid of my Google nest for a Honeywell zwave one while I design an esp32 based one.

    • village604@adultswim.fan
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      4 hours ago

      I need to get my 3D printer working so I can actually print a housing for my smart thermostat.

      All you really need is a temperature sensor and a 4x relay board.

      • AtHeartEngineer@lemmy.world
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        4 hours ago

        Ya the basic thing isn’t that difficult. I am adding other air quality sensors and I want to be able to control air exchange, humidifier, and exterior vents (bathroom fan). And I want it to be a bit more advanced/energy efficient vs a dumb pid loop. Also, it should operate if home assistant goes down.

        • village604@adultswim.fan
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          3 hours ago

          I have an automation for controlling bathroom vent fans using a humidity sensor in the bathroom and a reference one outside it if you’re interested.

          It also has logic to not turn off the fan if it has a Bluetooth speaker that’s playing music (currently using the “Music Active” companion app sensor, Bluetooth MAC was flakey).

          And logic to turn it off if the AC is running and music isn’t playing.

          • AtHeartEngineer@lemmy.world
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            3 hours ago

            I appreciate it! I have one setup already, mine decides whether to circulate the air in the house or vent the bathroom fan depending on the humidity in the rest of the house too.

            I like the idea/practice of “edge devices” where each device has its own responsibilities and autonomy to some extent, with home assistant acting as an overseer. if HA goes down, most of my house still works fine/has fallbacks. Need that wife approval factor lol. one time she couldn’t turn off the lights while I was out of town, lol she was a little pissed