Monitoring office air quality using a DIY air quality sensor

My colleague Andreas Brain recently approached me with an interesting project he heard of: monitoring the air quality using a DIY air quality sensor described at luftdaten.info. I could not resist and had to order all components. The arrived yesterday (fresh from China, thx aliexpress) and a few hours later (around 18 to be exact) we have 2 new air quality sensors online. One is at home, outside, and the other one is currently at our office, inside, on the 4th floor. It does not look very exciting, but works perfectly. Thx go out to the team of OKLab Stuttgart! Continue reading