OLED MicroPython Watch
https://www.youtube.com/watch?v=jHT4-2Z0mIQ
read the full guide on: https://learn.adafruit.com/micropython-oled-watch/overview
It's MicroPython Time! In this project we’ll show you how to make a watch using an Adafruit Feather M0, an RTC module and an OLED display.
This uses microPython, which is an interpreted language that runs on small embedded boards.
Be sure to check out Tony’s MicroPython playlist to learn how you can write clean and simple Python code to control hardware.
Feather M4 Express
https://www.adafruit.com/product/3857
RTC FeatherWing
https://www.adafruit.com/products/3028
OLED FeatherWing
https://www.adafruit.com/products/2900
Tripler FeatherWing
https://www.adafruit.com/product/3417
CR1220 Coin Cell
https://www.adafruit.com/products/380
400mAh 3.7v Battery
https://www.adafruit.com/product/3898
Short Male Headers for Feathers
https://www.adafruit.com/products/2940
Female Header set for Feathers
https://www.adafruit.com/products/2886