Quite some power is drawn by both the CO2 sensor (over 150 mA for just its heating element) and the SD card when writing (can be 300 mA).
What exact power supply do you use and how is it all connected?
Quite some power is drawn by both the CO2 sensor (over 150 mA for just its heating element) and the SD card when writing (can be 300 mA).
What exact power supply do you use and how is it all connected?