adafruit/circuitpython 10.3.0-alpha.1 on GitHub

This is CircuitPython 10.3.0-alpha.1, an alpha release for 10.2.0. Further features, changes, and bug fixes will be added before the final release of 10.3.0.

Highlights of this release

Improve SD card USB presentation on macOS.
Prefer foo.py over foo/ package when importing, like CPython.
Pin fixes.
Enable gifio and `storage in Zephyr port.

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.

Installation

To install follow the instructions in the Welcome to CircuitPython! guide. To install the latest libraries, see this page in that guide.

Try code.circuitpython.org or 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

Documentation is available in readthedocs.io.

Port status

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-C2, ESP32-C3, ESP32-C6, ESP32-C61, ESP32-H2, ESP32-S2, ESP32-S3
nordic: Nordic nRF52840, nRF52833
raspberrypi: Raspberry Pi RP2040, RP2350
stm: ST STM32F4 chip family

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

analog: Analog Devices MAX32690
broadcom: Raspberry Pi boards such as RPi 4, RPi Zero 2W
espressif: , ESP32-P4
litex: fomu
mimxrt10xx: NXP i.MX RT10xxx
renode: hardware simulator
silabs: Silicon Labs MG24 family
stm: ST non-STM32F4 chip families
zephyr: multiplatform RTOS, running on multiple chip families

Changes since 10.2.0

Fixes and enhancements

- Prefer foo.py over foo/ package when importing, like CPython. Conforms to CPython behavior. #10951. Thanks @tannewt.
Automount SD card earlier to make USB SD card access work properly on macoS. #10963. Thanks @mikeysklar.

Port and board-specific changes

Analog Devices

Broadcom

Espressif

i.MX

Nordic

renode

RP2

SAMx

SiLabs

Spresense

STM

Zephyr

Enable gifio and storage. #10970. Thanks @FoamyGuy.

Individual boards

Waveshare ESP32-S3 Matrix: fix pin name typo. #10971. Thanks @kylefmohr.

Documentation changes

Build and infrastructure changes

Translation additions and improvements

Thanks for translations:
- @andibing (English - UK)

New boards

Known issues

ESP32-C6 networking is not working well.
The CIRCUITPY drive is not working on at least some STM32 boards.
Native-code .mpy files are not working. This capability is currently enabled only on the winterbloom_sol board.
See https://github.com/adafruit/circuitpython/issues for other issues, including issues still to be addressed for:

Thanks

Thank you to all who used, tested, and contributed toward this release, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.

adafruit/circuitpython 10.3.0-alpha.1 CircuitPython 10.3.0-alpha.1 on GitHub