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CircuitPython

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</style><table class="infobox vevent"><tbody><tr><th colspan="2" class="infobox-above summary">CircuitPython</th></tr><tr><td colspan="2" class="infobox-image logo"><div class="infobox-caption">Logo of the Blinka library, a compatibility layer for CircuitPython</div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Programmer" title="Programmer">Original author(s)</a></th><td class="infobox-data"><a href="Adafruit_Industries" title="Adafruit Industries">Adafruit Industries</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Initial release</th><td class="infobox-data">July 19, 2017 (2017-07-19)<a href="#cite_note-1">[1]</a></td></tr><tr style="display: none;"><td colspan="2" class="infobox-full-data"></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Software_release_life_cycle" title="Software release life cycle">Stable release</a></th><td class="infobox-data"><div style="margin:0px;">9.2.8<a href="#cite_note-wikidata-187b4336592c723995dca63d4ec45ce59aead960-v20-2">[2]</a>

/ 28 May 2025 (28 May 2025)</div></td></tr><tr style="display:none"><td colspan="2">

</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Repository_(version_control)" title="Repository (version control)">Repository</a></th><td class="infobox-data"><a rel="nofollow" class="external free" href="https://github.com/adafruit/circuitpython">https://github.com/adafruit/circuitpython</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Written in</th><td class="infobox-data"><a href="C_(programming_language)" title="C (programming language)">C</a><a href="#cite_note-CP-GitHub-3">[3]</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Computing_platform" title="Computing platform">Platform</a></th><td class="infobox-data">Supported <a href="Microcontroller" title="Microcontroller">microcontrollers</a> and <a href="Single-board_computer" title="Single-board computer">single-board computers</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Software_categories#Categorization_approaches" title="Software categories">Type</a></th><td class="infobox-data"><a href="Python_(programming_language)" title="Python (programming language)">Python</a> implementation</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Software_license" title="Software license">License</a></th><td class="infobox-data"><a href="MIT_license" class="mw-redirect" title="MIT license">MIT license</a><a href="#cite_note-4">[4]</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Website</th><td class="infobox-data"><a rel="nofollow" class="external text" href="https://circuitpython.org/">circuitpython.org</a></td></tr></tbody></table>

CircuitPython<a href="#cite_note-5">[5]</a> is an open-source derivative of the <a href="MicroPython" title="MicroPython">MicroPython</a> programming language targeted toward students and beginners. Development of CircuitPython is supported by <a href="Adafruit_Industries" title="Adafruit Industries">Adafruit Industries</a>. It is a <a href="Software" title="Software">software</a> implementation of the <a href="Python_(programming_language)" title="Python (programming language)">Python</a> 3 <a href="Programming_language" title="Programming language">programming language</a>, written in <a href="C_(programming_language)" title="C (programming language)">C</a>.<a href="#cite_note-CP-GitHub-3">[3]</a> It has been ported to run on several modern <a href="Microcontroller" title="Microcontroller">microcontrollers</a>.

CircuitPython consists of a Python compiler to bytecode and a runtime interpreter of that bytecode that runs on the microcontroller hardware. The user is presented with an interactive prompt (the <a href="Read%E2%80%93eval%E2%80%93print_loop" title="Read–eval–print loop">REPL</a>) to execute supported commands immediately. Included are a selection of core Python libraries. CircuitPython includes modules which give the programmer access to the low-level hardware of supported products as well as higher-level libraries for beginners.<a href="#cite_note-6">[6]</a>

CircuitPython is a fork of MicroPython, originally created by Damien George.<a href="#cite_note-7">[7]</a> The MicroPython community continues to discuss<a href="#cite_note-8">[8]</a> forks of MicroPython into variants such as CircuitPython.

CircuitPython is targeted to be compatible with <a href="CPython" title="CPython">CPython</a>, the reference implementation of the Python programming language.<a href="#cite_note-9">[9]</a> Programs written for CircuitPython-compatible boards may not run unmodified on other platforms such as the <a href="Raspberry_Pi" title="Raspberry Pi">Raspberry Pi</a>.<a href="#cite_note-10">[10]</a>

<div class="mw-heading mw-heading2"><h2 id="Usage">Usage</h2></div>

CircuitPython is being used as an emerging alternative solution for microcontroller programming, which is usually done in C, C++, or assembly. The language has also seen uptake in making small, <a href="Handheld_video_game" class="mw-redirect" title="Handheld video game">handheld video game</a> devices.<a href="#cite_note-11">[11]</a> Developer Chris Young has ported his <a href="Infrared" title="Infrared">infrared</a> transmit-and-receive software to CircuitPython to provide interactivity and to aid those with <a href="Accessibility" title="Accessibility">accessibility</a> issues.<a href="#cite_note-12">[12]</a>

<div class="mw-heading mw-heading2"><h2 id="Community">Community</h2></div>

The user community support includes a <a href="Discord_(software)" class="mw-redirect" title="Discord (software)">Discord</a> chat room and product support forums.<a href="#cite_note-13">[13]</a> A <a href="Twitter" title="Twitter">Twitter</a> account dedicated to CircuitPython news was established in 2018.<a href="#cite_note-14">[14]</a> A newsletter, Python on Microcontrollers, is published weekly since 15 November, 2016 by Adafruit to provide news and information on CircuitPython, MicroPython, and Python on single board computers.<a href="#cite_note-15">[15]</a> A <a href="Reddit" title="Reddit">Reddit</a> subreddit, r/CircuitPython, provides news on CircuitPython and related news and projects and has about 4,300 members.<a href="#cite_note-16">[16]</a>

<div class="mw-heading mw-heading2"><h2 id="Hardware_support">Hardware support</h2></div>

As of July 6, 2025 version 9.2.8 supports over 608 different micro controller boards<a href="#cite_note-17">[17]</a>

The version 9.1.0 supports a range of platforms, called "ports":<a href="#cite_note-18">[18]</a>

<ul><li>atmel-samd: <a href="Microchip" class="mw-redirect" title="Microchip">Microchip</a> SAMD21, SAMx5x</li>

<li>cxd56: Sony Spresense</li>

<li>espressif: <a href="Espressif" class="mw-redirect" title="Espressif">Espressif</a> <a href="ESP32" title="ESP32">ESP32</a>, ESP32-S2, ESP32-S3, ESP32-C2, ESP32-C3, ESP32-C6</li>

<li>nordic: <a href="Nordic_Semiconductor" title="Nordic Semiconductor">Nordic</a> nRF52840, nRF52833</li>

<li>raspberrypi: <a href="Raspberry_Pi" title="Raspberry Pi">Raspberry Pi</a> <a href="RP2040" title="RP2040">RP2040</a>, <a href="RP2350" title="RP2350">RP2350</a></li>

<li>stm: ST <a href="STM32" title="STM32">STM32</a>F4 chip family</li></ul>

These ports are considered alpha and will have bugs and missing functionality:

<ul><li>broadcom: <a href="Raspberry_Pi" title="Raspberry Pi">Raspberry Pi</a> boards such as <a href="Raspberry_Pi_4" title="Raspberry Pi 4">RPi 4</a>, RPi Zero 2W (<a href="Bare_machine" title="Bare machine">bare metal</a>)</li>

<li>litex: fomu</li>

<li>mimxrt10xx: <a href="NXP_Semiconductors" title="NXP Semiconductors">NXP</a> i.MX RT10xxx</li>

<li>renode: hardware simulator</li>

<li>silabs: <a href="Silicon_Labs" title="Silicon Labs">Silicon Labs</a> MG24 family</li>

<li>stm: ST non-STM32F4 chip families</li></ul>

Previous versions supported the <a href="ESP8266" title="ESP8266">ESP8266</a> microcontroller, but its support was dropped in version 4.<a href="#cite_note-19">[19]</a>

<div class="mw-heading mw-heading3"><h3 id="Blinka_Software_Abstraction_Layer">Blinka Software Abstraction Layer</h3></div>

CircuitPython code may run on <a href="MicroPython" title="MicroPython">MicroPython</a> or <a href="CPython" title="CPython">CPython</a> using the Adafruit written Blinka compatibility layer.<a href="#cite_note-20">[20]</a> It acts as a translation layer between CircuitPython code and underlying code. This allows CircuitPython code to run on many more devices including a wide range of <a href="Single-board_computer" title="Single-board computer">single-board computers</a> which are listed on circuitpython.org.<a href="#cite_note-21">[21]</a> It is a <a href="Pip_(package_manager)" title="Pip (package manager)">pip</a> installable Python library. The CircuitPython runtime is not used, as documented in the guide CircuitPython Libraries on Linux and Raspberry Pi.<a href="#cite_note-22">[22]</a>

<div class="mw-heading mw-heading3"><h3 id="Modules_(Libraries)">Modules (Libraries)</h3></div>

Adafruit has fostered a community which has contributed software libraries for more than 488 sensors and drivers.<a href="#cite_note-23">[23]</a><a href="#cite_note-24">[24]</a>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>

<ul><li><a rel="nofollow" class="external text" href="https://github.com/Adafruit/CircuitPython">CircuitPython</a> on <a href="GitHub" title="GitHub">GitHub</a></li>

<li><a rel="nofollow" class="external text" href="https://www.youtube.com/playlist?list=PLjF7R1fz_OOXrI15wuXeESA0aA4VzcWSi">MicroPython</a> playlist on <a href="YouTube_playlist_(identifier)" class="mw-redirect" title="YouTube playlist (identifier)">YouTube</a> • Tutorials by Tony DiCola / <a href="Adafruit_Industries" title="Adafruit Industries">Adafruit</a></li></ul>

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</style><div id="Python379" style="font-size:114%;margin:0 4em"><a href="Python_(programming_language)" title="Python (programming language)">Python</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%;background: #FFCC55;"><a href="Programming_language_implementation" title="Programming language implementation">Implementations</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul>

<li><a href="CLPython" title="CLPython">CLPython</a></li>

<li><a href="CPython" title="CPython">CPython</a></li>

<li><a href="Cython" title="Cython">Cython</a></li>

<li><a href="MicroPython" title="MicroPython">MicroPython</a></li>

<li><a href="Numba" title="Numba">Numba</a></li>

<li><a href="IronPython" title="IronPython">IronPython</a></li>

<li><a href="Jython" title="Jython">Jython</a></li>

<li><a href="Psyco" title="Psyco">Psyco</a></li>

<li><a href="Python_for_S60" title="Python for S60">Python for S60</a></li>

<li><a href="Stackless_Python" title="Stackless Python">Stackless Python</a></li>

<li><a href="Unladen_Swallow" title="Unladen Swallow">Unladen Swallow</a></li>

</div></td><td class="noviewer navbox-image" rowspan="4" style="width:1px;padding:0 0 0 2px"><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background: #FFCC55;"><a href="Integrated_development_environment" title="Integrated development environment">IDEs</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="Ninja-IDE" title="Ninja-IDE">Ninja-IDE</a></li>

<li><a href="PyCharm" title="PyCharm">PyCharm</a></li>

<li><a href="PyDev" title="PyDev">PyDev</a></li>

<li><a href="Spyder_(software)" title="Spyder (software)">Spyder</a></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background: #FFCC55;">Topics</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background: #FFCC55;"><a href="Software_development" title="Software development">Designer</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Guido_van_Rossum" title="Guido van Rossum">Guido van Rossum</a></li></ul>

</div></td></tr><tr><td class="navbox-abovebelow hlist" colspan="3" style="background: #FFCC55;"><div>

<ul><li><a href="List_of_Python_software" title="List of Python software">Software</a> (list)</li>

<li><a href="Python_Software_Foundation" title="Python Software Foundation">Python Software Foundation</a></li>

<li><a href="Python_Conference" title="Python Conference">Python Conference</a> (PyCon)</li></ul>

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