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The easiest way to program microcontrollers
CircuitPython is a programming language designed to simplify
experimenting and learning to code on low-cost microcontroller
boards.

With CircuitPython, there are no upfront desktop downloads needed.
Once you get your board set up, open any text editor, and start
editing code. It's that simple.

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Supported by all of the best microcontrollers
See them all

More reasons to use CircuitPython

Quick and Easy

Create a file, edit your code, save the file, and it runs
immediately. There is no compiling or uploading needed.

Beginner Friendly

CircuitPython is designed with education in mind. It's an easy way to
start learning how to code and you get immediate feedback from the
board.

Easy Code Updates

Since your code lives on the disk drive, you can edit it whenever you
like. You can even keep multiple files around for easy
experimentation.

Serial Console + REPL

These features allow for live feedback from your code and interactive
programming.

File Storage

The internal storage for CircuitPython makes it great for
data-logging, playing audio clips, and otherwise interacting with
files.

Strong Hardware Support

There are many libraries and drivers for sensors, breakout boards and
other external components.

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The simple way to build something amazing
Python Logo

CircuitPython is based on Python

Python is the fastest growing programming language. It's taught in
schools and universities. It's a high-level programming language
which means it's designed to be easier to read, write and maintain.
It supports modules and packages which means it's easy to reuse your
code for other projects. It has a built in interpreter which means
there are no extra steps, like compiling, to get your code to work.
And of course, Python is Open Source Software which means it's free
for anyone to use, modify or improve upon.

CircuitPython adds hardware support to all of these amazing features.
If you already have Python knowledge, you can easily apply that to
using CircuitPython. If you have no previous experience, it's really
simple to get started!

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280+ libraries all written in Python
Raspberry Pi

CircuitPython libraries on single board computers

Most CircuitPython libraries also work on single board computers
(SBCs), such as the Raspberry Pi. Linux runs "desktop" Python
(commonly known as CPython) instead of CircuitPython. Our CPython
Blinka library provides CircuitPython's low level hardware APIs, such
as `digitalio`.

Blinka and CircuitPython libraries are just a `pip install` away.

Just the beginning...

CircuitPython continues to evolve, and is constantly being updated.
We welcome and encourage feedback from the community, and we
incorporate this into how we are developing CircuitPython. That's the
core of the open source concept. This makes CircuitPython better for
you and everyone who uses it!

Get Started

Thanks

CircuitPython wouldn't exist without the awesome work of Damien
George and the MicroPython community. They did the hard work to
reimplement Python on microcontrollers and continue to push the
boundaries of what is possible.

Thank you to Adafruit for continuing to support CircuitPython's
beginner-focused development.

Lastly, thank you to the CircuitPython community members who have
spent time testing, triaging, fixing and enhancing CircuitPython, its
libraries and its documentation. Together we're all making something
incredible.