Repository:  https://github.com/martinberlin/esp-mdf-light-oled

Requirements:

• ESP-IDF Toolchain installed + ESP-MDF and IDF referenced in your environment variables
  export MDF_PATH=~/esp/esp-mdf

• A Heltec ESP32 board http://www.heltec.cn/project/wifi_kit_32/ (ebay / alixpress)
  or any ESP32 with Oled, just configure the display SDA and SDL pins.
• A small breadboard, a RGB Led with one resistance per Anode, and that's it!

• OUTPUT GPIOs:
  (2) Light red pin GPIO number    (17) Light green pin GPIO number     (18) Light blue pin GPIO number

To flash it:
$ make flash ESPPORT=/dev/ttyUSB0