Hi,
I have created a modified I-9PSL PCB that should make hand soldering much easier. I replaced the ESP32-C3-Mini-1-N4 with the ESP32-C3-WROOM-02-N4 which can be soldered by hand more easily. I also changed the resistor and capacitor footprints from 0603 to 0805. I had to redo all the tracks to the ESP. Connectors and sensors remain unchanged, so we can use the standard enclosure STL.
It’s not tested yet, but maybe someone wants to take a look and suggest some improvements. The archive contains the KiCad project and gerber files.
Download from Google Drive, licensed under CC BY-SA 4.0
Last but not least: A big thank you to the Airgradient team for releasing Airgradient as Open Hardware and providing the KiCad project files.
