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:
atmel-samd: Microchip SAMD21, SAMx5x
cxd56: Sony Spresense
espressif: Espressif ESP32-S2
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
espressif: ESP32-S3, ESP32-C3
mimxrt10xx: NXP i.MX RT10xxx
stm: ST non-STM32F4 chip families
Changes since 7.3.0
Fixes and enhancements
Update frozen libraries. #6517. Thanks @dhalbert.
Port and board-specific changes
Fix allocation of multiple rotaryio.IncrementalEncoder objects. #6430. Thanks @dhalbert.
Fix crash when waking up from sleep when display is in use. #6512. Backport of #6486. Thanks @DavePutz.
Handle BLE disconnect when reading. #6513. Backport of #6495. Thanks @DavePutz.
Make SPI DMA setup be atomic. Fixes hangs on Adafruit MatrixPortal. #6498. Thanks @dhalbert.
Adafruit Circuit Playground Express boards: Do not freeze unneeded code. #6508. Backport of #6346. Thanks @Neradoc.
Build and infrastructure changes
Improve Espressif build cache key handling. #6506. Backport of #6494, #6497. Thanks @jepler.
New boards since 7.3.0
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 7.3.0, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.