adafruit/circuitpython 10.1.0-rc.0 on GitHub

This is CircuitPython 10.1.0-rc.0, a release candidate for 10.1.0 final. This release is believed to be stable, and is meant for testing before the final release of 10.1.0.

Highlights of this release

Fix long-standing Thonny disconnect issues.
Add hashlib.new("sha256")
Add bitmaptools.replace_color().

Notable changes in 10.1.0 from 10.0.x

Add mipidsi module to support MIPI DSI displays. Currently enabled for ESP32-P4.
Fix problems with presenting user-mounted SD cards over USB.
Update espressif ESP-IDF to v5.5.1 and support ESP32-C61.
Fix long-standing Thonny disconnect issues.
Add hashlib.new("sha256").
Add bitmaptools.replace_color().

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: testing with Nordic nRF5340, nRF54H20, nRF54L15, nRF7002; NXP i.MX RT1170, MCXN947; Renesas RA6M5, RA8D1; ST STM32H7, STM32N657, STM32U7,

Changes

Fixes and enhancements

Update frozen libraries, including stage libraries. #10808, #10807, #10774, #10745. Thanks @dhalbert, @deshipu, and @FoamyGuy.
Prevent recursive display refresh, which slowed down explicit refresh. #10806. Thanks @dhalbert.
Fix NLR thumb code, which fixes long-standing Thonny disconnect issues. #10804. Thanks @dhalbert.
Clean up audio code declarations. #10804. Thanks @jepler.
Fix audiobusio.PDMIn argument validation, return values, exceptions, and documentation. #10797. Thanks @tekktrik.
Fix compilation error that prevented disabling BLE workflow at compile time. #10811, #10755. Thanks @daniel-alsen.
Add hashlib.new("sha256"), and enable for Adafruit CLUE. #10740. Thanks @samblenny.
Add bitmaptools.replace_color(). #10732. Thanks @FoamyGuy.
Allow microcontroller.nvm size to be larger than 64 kiB. #10720. Thanks @hmaerki.
Fix MIPI display cache flush. #10713. Thanks @tannewt.
Improve jpegio unsupported format error message. #10688. Thanks @RetiredWizard.

Port and board-specific changes

Analog Devices

Broadcom

Espressif

Allow framebuffer_count > 1 in espcamera.Camera. #10772. Thanks @dhalbert.
Enable USB on ESP32-P4. #10744, #10736. Thanks @tannewt.

i.MX

Nordic

renode

RP2

Fix audiobusio.PDMIn clock rate. #10803. Thanks @jepler.

SAMx

SiLabs

Spresense

STM

Zephyr

Add native_sim tests. #10795. Thanks @tannewt.
Switch to native Zephyr USB, fix builds, add boards. #10761. Thanks @tannewt.
Add SPI; incorporate zephyr_i2c and zephyr_serial functionality into busio. #10752. Thanks @tannewt.
Add I2C support. #10746, #10735. Thanks @tannewt.
Update to Zephyr v4.3.0. #10716. Thanks @tannewt.

Individual boards

Hack Club Sprig: add board.SPI() for display and SD card. #10727. Thanks @dhalbert.
LILYGO T-Dongle S3. #10773. Thanks @freemansoft.
M5Stack Tab5: fix display on older boarsd. #10743. Thanks @tannewt.
XIAO S3: enable OV3660 camera support. #10719. Thanks @tannewt.

Documentation changes

Improve rainbowio documentation. #10789. Thanks @hartzell.
Fix typo in hashlib.new(). #10784. Thanks @fearnoeval.
Improve time.monotonic() documentation. #10764. Thanks @d-c-d.

Build and infrastructure changes

Translation additions and improvements

New boards

Adafruit TinyChad 2350. #10787. Thanks @dhalbert.
Cytron EDU PICO 2. #10768, #10734. Thanks @noqman.
M5Stack CoreS3 SE. #10794. Thanks @scarolan.
Studiolab Pico Expander. #10737. Thanks @Jerzeek.
Yoto Mini. #10783. Thanks @tannewt.
Yoto Player V3. #10783. Thanks @tannewt.

Known issues

See https://github.com/adafruit/circuitpython/issues for other issues, including issues still to be addressed for:
Native-code .mpy files are not working. This capability is currently enabled only on the winterbloom_sol board.

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 10.1.0-rc.0 CircuitPython 10.1.0-rc.0 on GitHub