We made a small co2 sensor based on the sensirion scd30 and m5 stack. If you want a portable sensor with battery and display, you might be interested. Source co

We made a small co2 sensor based on the sensirion scd30 and m5 stack. If you want a portable sensor with battery and display, you might be interested. Source code is on https://github.com/smoca-ag/m5stack_co2_sensor https://github.com/smoca-ag/m5stack_co2_sensor