adafruit/circuitpython 8.2.10

CircuitPython 8.2.10

on GitHub

This is CircuitPython 8.2.10, the latest bugfix revision of CircuitPython, and is a new stable release.

WARNING for nRF52 boards only: If your board has an nRF52 UF2 bootloader whose version is before 0.6.1, you will not be able to load CircuitPython 8.2.0 and later. The 8.2.0 firmware is larger than what the bootloader can handle. See these instructions for updating your bootloader.

Notable changes to 8.2.10 since 8.2.9

• Fix EPaperDisplay garbage collection.
• Add proto argument to SocketPool.socket constructor to allow specifying protocol.
• Allow RGBMatrix framebuffer size to be more than 65535 bytes.
• Allow creating a mount point on an existing directory.
• Individual board fixes.

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 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-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
• litex: fomu
• mimxrt10xx: NXP i.MX RT10xxx
• silabs: Silicon Labs MG24 family
• stm: ST non-STM32F4 chip families

Changes since 8.2.9

Fixes and enhancements

• Allow creating a mount point on an existing directory, in preparation for 9.0.0 capability. #8863. Thanks @jepler.
• Allow RGBMatrix framebuffer size to be more than 65535 bytes. #8847. Thanks @jepler.
• Fix EPaperDisplay refresh sequence garbage collection. #8843, #8839. Thanks @tannewt.
• Add proto argument to SocketPool.socket constructor to allow specifying protocol. #8752. Thanks @carson-coder.
• Detect and reject RLE-compress BMP files in OnDiskBitmap. #8735. Thanks @dhalbert.

Port and board-specific changes

Broadcom

Espressif

i.MX

nRF

RP2040

SAMx

SiLabs

Spresense

STM

Individual boards

• M5Stack Atom Lite: Add IR LED prin. #8747. Thanks @carson-coder.
• Pimoroni DV Base: Fix I2S audio pin assignments. #8906. Thanks @RetiredWizard.
• UnexpectedMaker Bling: Pin changes. #8852. Thanks @UnexpectedMaker.
• UnexpectedMaker Tiny Watch S3: Fix power shutdown pin. #8716. Thanks @prplz.

Documentation changes

Build and infrastructure changes

Translation additions and improvements

New or removed boards since 8.2.9

Known issues

• ESP32-S3 has significant issues with I2C devices that sleep or use clock stretching. Retry operations on these devices as necessary, or use ESP32-S2 boards. This problem is fixed in current 9.0.0 builds
• Espressif boards have ESP-IDF storage leaks and occasionally crash after extended WiFi use.
• See https://github.com/adafruit/circuitpython/issues for other issues, including issues still to be addressed for:
  • 8.2.x
  • 9.0.0
  • long term

Thanks

Thank you to all who used, tested, and contributed since 8.2.9, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.