fragile-sky

Display SF MUNI transit times on an epd2in13 e-ink display with an esp32c6 board

Pins

https://docs.espressif.com/projects/espressif-esp-dev-kits/en/latest/esp32c6/esp32-c6-devkitc-1/user_guide.html

     . G         3v3 . VCC
     . TX        RST .
     . RX          4 . din
     . 15          5 . cs
  dc . 23          6 . busy
 rst . 22          7 .
     . 21          0 . clk
     . 20          1 .
     . 19          8 .
     . 18         10 .
     . 9          11 .
     . G           2 .
     . 13          3 .
     . 12         5V .
     . G         GND . GND
     . NC         NC .

Flashing

Install cargo-espflash.

cargo install cargo-espflash

Connect to the board via the UART port.

cargo flash --monitor

Useful Links

• A flashing utility for esp32 boards
  • https://esp-rs.github.io/book/tooling/espflash.html
• Wifi
  • /~https://github.com/esp-rs/esp-wifi/blob/main/examples-esp32c6/examples/dhcp.rs
• esp32c6-hal docs
  • https://docs.rs/esp32c6-hal/latest/esp32c6_hal/index.html
• epd2in13 manual
  • https://www.waveshare.com/wiki/2.13inch_e-Paper_HAT_Manual
• epd-waveshare docs
  • https://docs.rs/epd-waveshare/latest/epd_waveshare/index.html
• Pins from a different board that may be useful
  • https://lastminuteengineers.com/esp32-pinout-reference/