This is CircuitPython 8.1.0, the latest minor revision of CircuitPython, and is a new stable release.
Notable changes to 8.1.0 since 8.0.0
- Silicon Labs (SiLabs) MG24 microcontroller family port (
silabs), contributed by Silicon Labs.
- Add animated GIF support, including palette support:
safemode.py, for programmatic handling of safe mode.
- Add ESP-NOW support on Espressif.
synthioimprovements and new features; API is still experimental and will continue to change after 8.1.0.
picodvion RP2040: DVI/HDMI framebuffer and
- CPU frequency is settable on RP2040.
- Add 7-color e-ink display support.
- Allow setting pystack size in
- Allow static IPv4 addresses for access points.
- Add dither support to
Download from circuitpython.org
Firmware downloads are available from the downloads page on circuitpython.org. The site makes it easy to select the correct file and language for your board.
To install follow the instructions in the 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).
Documentation is available in readthedocs.io.
CircuitPython has a number of "ports" that are the core implementations for different microcontroller families. Stability varies on a per-port basis. As of this release, these ports are consider stable (but see Known Issues below):
atmel-samd: Microchip SAMD21, SAMx5x
cxd56: Sony Spresense
espressif: Espressif ESP32, ESP32-S2, ESP32-S3, ESP32-C3
nrf: Nordic nRF52840, nRF52833
raspberrypi: Raspberry Pi RP2040
stm: ST STM32F4 chip family
These ports are considered alpha and will have bugs and missing functionality:
broadcom: Raspberry Pi boards such as RPi 4, RPi Zero 2W
mimxrt10xx: NXP i.MX RT10xxx
silabs: Silicon Labs MG24 family
stm: ST non-STM32F4 chip families
Changes since 8.1.0-rc.0
This release is a relabeling of 8.1.0-rc.0 and is otherwise the same as that release.
- ESP32-S3 has issues with I2C devices that sleep (LC709203F), use clock stretching, or violate the I2C protocol (e.g., BNO055). Retry operations on these devices as necessary, or use ESP32-S2 boards.
- ESP32-S2 used as an HTTP server may crash after several hours. This is a regression from 7.x.x.
- See https://github.com/adafruit/circuitpython/issues for other issues, including issues still to be addressed for:
Thank you to all who used, tested, and contributed since 8.0.0, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.