Software for CO2 Monitor Compiling mkdir build cd build cmake .. make ./co2mond/co2mond Installation Arch Linux There is PKGBUILD in AUR. The simplest way to install is using yaourt: yaourt -S co2mon-git See also ZyAura ZG01C Module Manual RevSpace CO2 Meter Hacking Photos of the device and the circuit board Pre-alpha of GNOME Shell Extension