Started PCB

2026-05-10 01:03:38 -07:00
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+# PCB Layout
+
+For connecting [Waveshare 2.9inch Touch e-Paper HAT](https://www.waveshare.com/2.9inch-Touch-e-Paper-HAT.htm) 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"