Working on an extension to my recently purchased outdoor AirGradient unit to add an atmospheric pressure sensor, a second temperature/humidity sensor, some connections to an external rain gauge and a way to power the unit without going through USB.
Many of the sensors and connections are small enough that I could have spun another PCB to replace the VOC/NOx module it comes with[1], but SGP41 ain't cheap & I wouldn't dare to desolder one from the existing module. So instead I'm going to try to use the extension I/O connector AG board has. Am currently waiting for my PCBs to arrive.
Speaking of PCBs. It is wonderful that it is possible to get 5 units of a prototype for a price of a coffee or two.
Many of the sensors and connections are small enough that I could have spun another PCB to replace the VOC/NOx module it comes with[1], but SGP41 ain't cheap & I wouldn't dare to desolder one from the existing module. So instead I'm going to try to use the extension I/O connector AG board has. Am currently waiting for my PCBs to arrive.
Speaking of PCBs. It is wonderful that it is possible to get 5 units of a prototype for a price of a coffee or two.
[1]: https://www.airgradient.com/shop/#!/SGP41-TVOC-NOx-Module/p/...