CircuitPython

CircuitPython is a beginner friendly , open source version of Python for tiny, inexpensive computers called microcontrollers. Microcontrollers are the brains of many electronics including a wide variety of development boards used to build hobby projects and prototypes. CircuitPython in electronics is one of the best ways to learn to code because it connects code to reality. Simply install CircuitPython on a supported USB board usually via drag and drop and then edit a code.py file on the CIRCUITPY drive. The code will automatically reload. No software installs are needed besides a text editor (we recommend Mu for beginners.) Starting with CircuitPython 7.0.0, some boards may only be connectable over Bluetooth Low Energy (BLE). Those boards provide serial and file access over BLE instead of USB using open protocols. (Some boards may use both USB and BLE.) BLE access can be done from a variety of apps including code.circuitpython.org . CircuitPython features unified Python core APIs and a growing list of 300+ device libraries and drivers that work with it. These libraries also work on single board computers with regular Python via the Adafruit Blinka Library . CircuitPython is based on MicroPython . See below for differences. Most, but not all, CircuitPython development is sponsored by Adafruit and is available on their educational development boards. Please support both MicroPython and Adafruit. Official binaries for all supported boards are available through circuitpython.org/downloads . The site includes stable, unstable and continuous builds. Full release notes are available through GitHub releases as well. See CONTRIBUTING.md for full guidelines but please be aware that by contributing to this project you are agreeing to the Code of Conduct . Contributors who follow the Code of Conduct are welcome to submit pull requests and they will be promptly reviewed by project admins. Please join the Discord too. If you'd like to use the term "CircuitPython" and Blinka for your product here is what we ask: Your product is supported by the primary "adafruit/circuitpython" repo. This way we can update any custom code as we update the CircuitPython internals. Your product is listed on circuitpython.org (source here ). This is to ensure that a user of your product can always download the latest version of CircuitPython from the standard place. Your product supports at least one standard " Workflow " for serial and file access: With a user accessible USB plug which appears as a CIRCUITPY drive when plugged in. With file and serial access over Bluetooth Low Energy using the BLE Workflow. With file access over WiFi using the WiFi Workflow with serial access over USB and/or WebSocket. Boards that do not support the USB Workflow should be clearly marked. If you choose not to meet these requirements, then we ask you call your version of CircuitPython something else (for example, SuperDuperPython) and not use the Blinka logo. You can say it is "CircuitPython-compatible" if most CircuitPython drivers will work with it. CircuitPython: Supports native USB on most boards and BLE otherwise, allowing file editing without special tools. Floats (aka decimals) are enabled for all builds. Error messages are translated into 10+ languages. Concurrency within Python is not well supported. Interrupts and threading are disabled. async/await keywords are available on some boards for cooperative multitasking. Some concurrency is achieved with native modules for tasks that require it such as audio file playback. Behavior ~~~~~~~~ The order that files are run and the state that is shared between them. CircuitPython's goal is to clarify the role of each file and make each file independent from each other. boot.py runs only once on start up before workflows are initialized. This lays the ground work for configuring USB at startup rather than it being fixed. Since serial is not available, output is written to boot out.txt . code.py (or main.py ) is run after