All you need to build your own little fine dust sensor & outdoor weather station:
- ESP32 micro controller
- SDS011 laser scattering particle sensor
- BME280 temp/humidity sensor
- Jumper wires
- PVC flexible tube
- PVC pipe for protection
You can get all those parts for ~$30.
A map of particle sensors:
@fribbledom hexagons make maps cooler automatically
I might attempt this. Nice.
@fribbledom This is something I might do. I would want to throw more stuff into it, like a pressure sensor.
The BME280 actually does have a pressure sensor on board as well. If you want absolute pressure values though, I think it needs to be calibrated for your specific location first.
@fribbledom Well I am a fool for trusting the Adafruit search engine then.
@fribbledom Interestingly, there are only a handful of stations reporting in the Americas, and they all look good compared to Europe and Asia. I wonder if that's a sensor problem, location issue, or indeed fewer particulates?
I guess there really are too few stations in the US to give an accurate picture, but generally speaking:
I would assume that most sensors report accurate values here. The air quality in the denser populated and less pollution-regulated parts of the world is much worse indeed.
I've always build my own, in german
https://pilgerweg-21.de/2019/03/von-staub-zu-staub #Feinstaub #Umwelt
@fribbledom Great info. Thanks.
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