PCB Layout
For connecting Waveshare 2.9inch Touch e-Paper HAT with an ESP32
Controller Selection
12E/12F style module for simplicity, and ICSP with an external serial TTL.
Will probably be worth running a paste stencil.
Enclosure Considerations
Intent is for this to fit into a junction box, so it can mount to a printed replacement for a switch plate.
NA Jbox screw spacing:
- "Box Mount" (Where the switch mounts to the jbox): 3.281"
- "Strap Mount" (Where the cover plate mounts to the switch): 3.812"