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We’ve just released the first beta version of CircuitPython! CircuitPython is based on the open-source MicroPython which brings the popular Python language to microcontrollers. The goal of CircuitPython is to make hardware as simple and easy as possible. CircuitPython adds support for the SAMD21 processor found on the Arduino Zero and Feather M0s. Furthermore, many APIs including the hardware APIs have been reworked for the  SAMD21 and ESP8266. This rework ensures that APIs are consistent across processors and makes it easier to keep documentation up to date with implementation.  Lastly, the APIs common with CPython on desktop are strictly a subset which means code written for CircuitPython will work with CPython.

This beta is the precursor to a 1.0 version which will ship on upcoming hardware designed for CircuitPython. A few things may change but the vast majority of the APIs are fixed. We’re focussed on creating awesome libraries and drivers on top of this new foundation to help verify the API design. Any help writing drivers, finding and fixing bugs is appreciated! Please file issues on GitHub and chat with us on Gitter.

To run the beta you need a Feather Huzzah, Arduino Zero or Feather M0. The bin files are available here. Instructions on loading MicroPython and CircuitPython are the same and are available here as a learning guide.

You can also support MicroPython and the creator, Damien George by purchasing official PyBoards at Adafruit as well as MicroPython stickers. Adafruit will soon be shipping CircuitPython boards, stay tuned to our weekly shows for more information and previews!