Adafruit Feather M4 Express Manual page 55

If you have trouble getting to the prompt, try pressing Ctrl + C a few more times.
>>>
The first thing you get from the REPL is information about your board.
This line tells you the version of CircuitPython you're using and when it was released. Next, it gives you the type of
board you're using and the type of microcontroller the board uses. Each part of this may be different for your board
depending on the versions you're working with.
This is followed by the CircuitPython prompt.
From this prompt you can run all sorts of commands and code. The first thing we'll do is run . This will tell us
help()
where to start exploring the REPL. To run code in the REPL, type it in next to the REPL prompt.
Type next to the prompt in the REPL.
help()
Then press enter. You should then see a message.
First part of the message is another reference to the version of CircuitPython you're using. Second, a URL for the
CircuitPython related project guides. Then... wait. What's this?
To list built-in modules, please do `help("modules")`.
Remember the libraries you learned about while going through creating code? That's exactly what this is talking about!
This is a perfect place to start. Let's take a look!
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