Mu is a Python code editor for beginner programmers.

Mu Editor

Installing Mu on Windows or Mac

The first step is to download the latest version of Mu: https://codewith.mu

If you are using Windows, you must be running Windows 7 or higher. For macOS you must be running 10.12 (Sierra) or higher.

Using Mu

Mu attempts to automatically detect a Circuit Playground Express plugged into a computer. Before starting Mu, please plug in your CircuitPlayground Express and make sure it shows up as a CIRCUITPY drive in your computer’s file explorer.

Once Mu is started, you will be prompted to select your mode. Please select Adafruit CircuitPython.

Note: The following lesson can only be completed with the Mu Editor installed.