CO2 measurements are easily done with the I2C devices SCD30 and SCD41, as well as with the MiniMon device. My assessment is: "Measuring CO2 with SCD30, SCD41, and MiniMon" from here https://sourceforge.net/projects/geiger ... /Articles/
However, to connect the I2C devices I used the USB-ISS dongle. I had also tried the Adafruit FT232H, but this always failed to connect to the SCD30 sensor. Reviewed in "Review of USB-To-I2C Dongles as used by GeigerLog" download at the same place.
Any help much appreciated.
Measure CO2 with SCD30, SCD41, and MiniMon
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