This is an easy-to-read CO2 monitor that uses the SCD-30 NDIR CO2 sensor connected up to a Matrix Portal + 64×32 Matrix. It’s super visible and gives visual hints so you know when its time to crack open the window, or when you’re in good shape. We’re seeing a lot of students+teachers want to build something like this for their classrooms so this version could be helpful – its totally plug and play thanks to Stemma QT!
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