“using as part of a raspberry pi pico project to calculation co2 produced from breathe.. on going project, but it is detecting (from a base line) exhauled breath..”
“The SCD41 proved to be a very reliable CO2 sensor during the past weeks that I tested it thoroughly in different environments and conditions. Unlike metal-oxide gas sensors, which I also tested, they produced idiot values when the humidity of the room suddenly changes (in case the door to the shower is opened or a window) or goes totally bananas when people are consuming alcoholic beverages in the room with the sensor. This is NOT the case with the SCD41, it gives values that make sense!”