It has taken two weeks of hard work but now the first prototype was assembled. This raspberry pi zero HAT is capable of measuring the concentration of NH3, NO2 and CO in the air. Besides, it also monitors the temperature, pressure and the humidity.
The board also includes the possibility to plug in the fine particulate matter sensor SDS011 and a small fan, which is fully controllable through the board.
If you like, you can also add on a TGS2600 sensor for general air quality monitoring. Click here for further information on the board.
To be able to test the board in every possible way, I first need to write the software that runs the bee. As this project is open source, the code will be available on my GitHub directory as soon as I have a first stable version.