A small Co2 Indicator using a MH-Z19B and a Raspberry Pi Pico, written in Micropython. It shows the current amount of Co2 in the Enviroment to be read and understood at a glance.
The Project is based on Code by Artem Smotrakov, whose MHZ19BSensor Class i picked for the great Errorchecking of the UART Messages. I altered the Code to integrate the Neopixel LEDs for my apllication. The original Project may be found here