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Plug In


  1. Plug your PyCubed board into a computer (Windows/Mac/Linux) using the included USB C cable.

  2. After a moment, your computer should recognize the board as a "mass storage device" (like a flash drive) called PYCUBED.

  3. You should also notice the on-board RGB LED cycling through a rainbow of colors. PyCubed ships with an example script that does this automatically. This will stop happening if you change or replace the default main.py.

    👆 Replacement rainbow main.py file (if needed)

    👆 Replacement rainbow main.py file (if needed)

❓ Troubleshooting Connection Issues

Open Mu


  1. With the board plugged in and confirmed working, open Mu (if it's not open already)

  2. Mu sometimes reports that it can't find a CircuitPython device. Like this:

    https://s3-us-west-2.amazonaws.com/secure.notion-static.com/6972ea73-59c5-4b8e-8ee6-0c1a0ce6bd5c/Untitled.png

    Click "OK" and proceed with the instructions below.

  3. Open the Serial Monitor (aka "REPL") by clicking the "Serial" button along the top bar. You should now see something similar to the image below.

Mu editor ("dark theme") showing the Serial button and corresponding REPL output on Windows

Mu editor ("dark theme") showing the Serial button and corresponding REPL output on Windows

❓ Troubleshooting Mu Issues

Check Serial Terminal


  1. Click inside the "CircuitPython REPL" box and press Ctrl + C on your keyboard. (Ctrl + C halts the current program running on the board)

    <aside> 💡 Keep in mind: Depending on the code that's running, you may need to press Ctrl+C multiple times in order for Mu to catch the keyboard interrupt)

    </aside>

    You should now see something similar to...

    https://s3-us-west-2.amazonaws.com/secure.notion-static.com/5887788c-e2a8-4b54-9e7c-ce577fc10735/Untitled.png

    🎉 congratulations! Mu is now successfully installed and configured.