“Great peice of kit. Able to program for atmopsheric volatiles, hydrogen, ethanol and CO2. Get yourself a DHT22/similar humidity/temp sensor to help compensate values for more accurate readings. Uses I2C so if you're using more than one you'll have to get yourself a multiplexer. Currently using x10 of these to demonstrate treatment differences in horticultural trials.”
“Been "burning" this in for a few weeks now on an ESP32 and I have no major complaints, the readings seem to be good, just make sure to follow the instructions and let it burn in and get a baseline reading.
There was a few unusual spikes in readings during the first few days but they have since disappeared but it is something to keep an eye on”
“Very interesting sensor. It seems to reliably detect when I have been working in my office with the windows and doors closed for too long. Though I still don't really understand how the baseline process works - does it mean that if left in a high CO2 environment it will eventually think that is normal and starting measuring that as zero? I can't find any info about how the sensor actually works and how to interpret the data. There seem to be wide range of different ways for CO2 sensors to work (IR, acoustic, etc.) ... and I can't find an description of how the SGP30 works.”
