I build a new version of my [air quality station](https://www.thingiverse.com/thing:4262574), this one is portable and battery powered.
Now with the quarantine and all I spent a lot of time in my home office and I wanted to now if being in a room for that long has a noticeable impact on the Air. Not totally scientific but it an amazing reminder to open up the windows once in a while."
This is the case containing the electronics I pushed the code and documentation about the electronics to github [here](https://github.com/tom-dierckx/AirQuality-Station-using-Attiny85)
I did not design the battery case I used this 18650 battery case that I found on thingiverse [here](https://www.thingiverse.com/thing:535688)
I also added the FreeCAD files as the case is not entirely to my liking (would like to add a way to keep it closed using bolds or a plug system).