Arduino Dependencies:
https://github.com/espressif/arduino-esp32
https://github.com/adafruit/Adafruit-GFX-Library
https://github.com/ZinggJM/GxEPD2
https://github.com/bblanchon/ArduinoJson
https://github.com/PaulStoffregen/Time
Wiring:
ESP32 / Waveshare 2.9" black white e-paper
- VCC / 3V
- GND / GND
- DIN / 23
- CLK / 18
- CS / 5
- D/C / 17
- RST / 16
- BUSY / 4
WIRING UPDATE JAN 2020: using Lilygo T5 v2.2, no external wiring needed