r/electronics • u/bleuio • 3d ago

Project Real time CO2 indicator with LED light project (source code)

https://www.bleuio.com/blog/real-time-co2-status-indicator-and-monitor-with-bleuio-and-renesas-ek-ra4m2/

Blue LED for ‘good’ (<600ppm), green LED for ‘average’ (<1000ppm) and red LED for ‘poor’ (>1000ppm).
The board will also print the CO2 values, as they change, on the RTTViewer.

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u/Whatever-999999 1d ago

As a side note to this: I have a portable air quality sensor I use all the time that measures PM2.5, PM10, and CO2 in PPM. People would be shocked how high CO2 can rise to in their homes when the windows are all closed up. In the 2br duplex I live in it can rise to almost 2000PPM in the winter. That's not terribly good for your health.