Dan 🏳️‍🌈🇦🇺☁️ on Nostr: Is there such a thing as a sensor that measures CO2 and pm2.5, can expose that data ...

Is there such a thing as a sensor that measures CO2 and pm2.5, can expose that data to #homeassistant , and doesn't cost the earth?

Hell, I've got a couple of spare ESP boards lying around. I'd settle for a couple of sensor modules I could pick up and wire into one of them if they would save me some $

Bedroom air quality measurement project