User Manual

CircuitPython
CircuitPython (https://adafru.it/tB7) is a derivative of MicroPython (https://adafru.it/BeZ) designed to simplify
experimentation and education on low-cost microcontrollers. It makes it easier than ever to get prototyping by
requiring no upfront desktop software downloads. Simply copy and edit files on the CIRCUITPY drive to iterate.
Set up CircuitPython Quick Start!
Follow this quick step-by-step for super-fast Python power :)
https://adafru.it/Emf
https://adafru.it/Emf
Further Information
For more detailed info on installing CircuitPython, check out Installing CircuitPython (https://adafru.it/Amd).
Click the link above and download the latest UF2 file.
Download and save it to your desktop (or wherever is
handy).
Plug your Metro M4 into your computer using a known-
good USB cable.
A lot of people end up using charge-only USB cables
and it is very frustrating! So make sure you have a USB
cable you know is good for data sync.
Double-click the Reset button next to the USB
connector on your board, and you will see the NeoPixel
RGB LED turn green. If it turns red, check the USB cable,
try another USB port, etc.
© Adafruit Industries https://learn.adafruit.com/adafruit-metro-m4-express-featuring-atsamd51 Page 46 of 172