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Only Sensor (5, 4, 8-AQ, and 2-TH): The only DIY home automation sensor you'll ever need (lemmy-ui.nowsci.com:33443)
submitted 7 months ago by fmstrat@lemmy.nowsci.com to c/homeassistant@lemmy.world
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Hey all,

A couple of weeks ago I posted my 3D printable pegboard organizers, and today I’m releasing the Only Sensor line of home automation sensors.

Fully free and open, complete with wiring diagrams, cases, component bill of materials, and instructions for assembly.

You source and build them yourself, with acquisition costs ranging from $2-$35 to build, and options for:

  • mmWave presence
  • PIR motion detection
  • Temperature
  • Humidity
  • LUX
  • PM <10µm AQI
  • PM <2.5µm AQI
  • PM <1µm AQI
  • NOX
  • VOC

All integrate with Home Assistant via ESPHome.

All the details can be found at: https://nowsci.com/only-sensor/

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[-] kata1yst@sh.itjust.works 14 points 7 months ago

Not speaking for Mr Lemon, but for me CO2 levels are an interesting metric to trigger my air exchanger / HVAC fan combo for in a given zone, since it indicates stale air in general.

[-] mholiv@lemmy.world 3 points 7 months ago

Same ^

CO2 sensor for me is the most important.

[-] fmstrat@lemmy.nowsci.com 2 points 7 months ago

Good to know, maybe I'll add a MH-Z19.

this post was submitted on 24 Dec 2024
363 points (97.1% liked)

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