SuperHouse #38: DIY air quality sensor part 1 - "Basic" version
https://www.superhouse.tv/38-diy-air-...
https://www.superhouse.tv/episodes
It's surprisingly easy to make your own simple air quality sensor. All you need is a cheap laser-scattering particulate matter sensor, a Wemos D1 Mini, a soldering iron, and Tasmota.
Part 1 shows how to make the simplest possible air quality sensor. Parts 2 and 3 will show how to make more advanced versions.
See the link above for a step by step guide.
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