Version 1

Bill of Materials

Part Link Cost Quantity
Tactile Button Switch (6 mm) Adafruit $0.125 1
Breadboard-friendly SPDT Slide Switch / E-Switch EG1218 Adafruit / Mouser $0.95 1
Adafruit HUZZAH32 – ESP32 Feather Board Adafruit $19.95 1
640x384, 7.5inch E-Ink display HAT for Raspberry Pi, yellow/black/white three-color Waveshare $53.99 1
Diffused 3mm LED Adafruit $0.118 1

Components

The EagleCAD files make use of the following component libraries which are added to the project as submodules:

Schematics

Schematics

Pinouts

Tom's notes