This is CircuitPython 6.0.0, the latest major revision of CircuitPython, and is a new stable release.
Download from circuitpython.org
Downloads are available from circuitpython.org. The site makes it easy to select the correct file and language for your board. The downloads page is here. Downloads are no longer available from the GitHub release pages because of the large number of files for each release. (If you see the unstable release 6.0.0-rc.2 when you browse circuitpython.org, that release is older. Use this one.)
To install follow the instructions in our new Welcome to CircuitPython! guide. To install the latest libraries, see this page in that guide.
Try the latest version of the Mu editor for creating and editing your CircuitPython programs and for easy access to the CircuitPython serial connection (the REPL).
CircuitPython has a number of “ports” that are the core implementation for a variety of microcontroller families. Stability varies on a per-port basis. As of this release,
stm for the F4 family are stable.
stm for other chip families are being actively improved but may be missing functionality and have bugs.
mimxrt10xx are in an alpha state and will have bugs and missing functionality.
Major new features and improvements since 5.x
- New port to ESP32-S2 chip.
countiomodule to count pulses.
watchdogcontrols hardware watchdog timer. Only on certain ports.
canioprovides support for CAN bus operations.
_bleioadds support for HCI-based BLE co-processors, such as AirLift boards.
aesioprovides support for AES computations.
async/awaitmade available by default in many builds; support improved.
- Network modules are revamped, adding
ssl, and other modules. Disabled
networkmodules. They will be removed in 7.x in favor of networking libraries.
- Improved USB serial detection.
jsoncan now read from stream objects.
pulseio.PWMOutis split out into
pwmio.PWMOut. It is still available in
pulseio, but that is deprecated and will be removed in 7.x.
memorymonitorfor memory debugging. It is not enabled by default.
- Reduced power consumption (light sleep) during
Breaking changes since 5.x
i2cperipheraland the class in it is changed as well.
stopkwarg has been removed from
I2C.writeto(). If no stop is desired, then use
- The default speed of
board.I2C()is now 100khz, not 400khz as before. Use
busio.I2Cto set the speed explicitly.
_bleio.ConnectionErrorhas been removed. Code will now raise the native
New boards since 5.3.1 (38 boards)
- Adafruit BLM Badge
- Adafruit Feather M4 CAN
- Adafruit Matrix Portal M4
- Adafruit Metro ESP32S2
- Adafruit Metro M7 1011
- Adafruit QT Py
- Adafruit QT Py Haxpress
- AloriumTech Evo M51
- Atmel SAME54 Xplained
- BDMicro Vina D51
- BH Dynamics DynOSSAT-EDU-EPS
- BH Dynamics DynOSSAT-EDU-OBC
- BLE-SS Dev Board Multi Sensor
- Electronic Cats Bastwifi
- Espressif Saola 1 w/WROOM
- Espressif Saola 1 w/WROVER
- Fluff M0
- HiiBot BlueFi
- Ikigaisense Vita nRF52840
- Loc Ber M4
- MakerDiary M60 Keyboard
- MakerDiary nRF52840 M.2 devkit
- Makerdairy Pitaya Go
- Muselab nano ESP32-S2
- Nice Nano
- Nordic PCA10100
- OpenMV H7
- PyCubed MRAM
- Raytac MDBT50Q-DB-40
- STM32F746 Discovery
- STM32F746 Nucleo
- Seeeduino Wio Terminal
- Teensy 4.1
- TinkeringTech ScountMakes
- UnexpectedMaker FeatherS2
- microDev microS2 (ESP32-S2)
- We are not aware of any show-stopper issues.
- See https://github.com/adafruit/circuitpython/issues for other issues.
Thank you to all who used, tested, and contributed since 5.3.1. See the 5.4.0 and 6.0.0 alpha, beta and RC releases for all who contributed. Join us on the Discord chat to collaborate.
Documentation is available in readthedocs.io.
This release is based on MicroPython 1.9.4 @25ae98f. Support upstream MicroPython by purchasing a PyBoard (from Adafruit here) or sponsoring MicroPython on GitHub.
One important feature of CircuitPython is translated control and error messages. With the help of fellow open source project Weblate, we’re making it even easier to add or improve translations. Sign in with an existing account such as Github, Google or Facebook and start contributing through a simple web interface. No forks or pull requests needed!
Check out this guide for info on common problems with CircuitPython. If you are still having issues, then post to the Adafruit Support Forums and join Discord.
Builds are no longer stored as assets on this release page, because there are too many of them. Please see the Download from circuitpython.org section above.