From the GitHub release page:
This is CircuitPython 7.3.0-beta.1, the second published beta release for CircuitPython 7.3.0. It is relatively stable, but there will be further additions and fixes before final release.
Notable changes to 7.3.0 since 7.2.5
- Experimental mDNS support.
- USB to to Serial/JTAG support for REPL on appropriate boards.
- Initial experimental USB host support.
- Merge MicroPython 1.18 changes.
- Preliminary
zlib
module support.gzip
module will be added later. PIO
:wrap
andwrap_target
support.keypad
: scan keystates immediately on creation.
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:
atmel-samd
: Microchip SAMD21, SAMx5xcxd56
: Sony Spresenseespressif
: Espressif ESP32-S2nrf
: Nordic nRF52840, nRF52833raspberrypi
: Raspberry Pi RP2040stm
: 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 2Wespressif
: ESP32-S3, ESP32-C3litex
: fomumimxrt10xx
: NXP i.MX RT10xxxstm
: ST non-STM32F4 chip families
Changes since 7.3.0-beta.0
Fixes and enhancements
- Refactor
keypad
to share more code. Scan key states immediately when created. #6248. Thanks @jepler. - Fix use of internal flash filesystem stubs. #6226. Thanks @EmergReanimator.x
- All changes in 7.2.5: includes ESP32-S2 I2C power (#6103),
MP3Decoder
looping (#6230), nRF PWM fix (#6233), RP2040 UART fixes (#6240, #6238). #6234. Thanks @jepler. - Add
zlib
module, specificallyzlib.decompress()
. #6069. Thanks @gamblor21.
Port and board-specific changes
Broadcom
Espressif
- Disable pull-up when
AnalogIn
constructed; allows faster reading of high-impedance sources. #6246. Thanks @dhalbert and @DavePutz. - Support
rotaryio
divisor changes. #6207. Thanks @domdfcoding.
nRF
RP2040
- Add support for PIO
.wrap
and `.wrap_target pseudo-operations. #6029. Thanks @jepler.
SAMx
- Fix time jumping around on RTC overflow boundaries. #6202. Thanks @jepler.
STM
Individual boards
- Adafruit MagTag: Don’t reset
board.BATTERY
; allows promptAnalogIn
use. #6246. Thanks @DavePutz. - Espressif ESP32-S3 USB OTG N8: add
board.DISPLAY
. #6222. Thanks @todbot. - iLabs Challenger 840: Add support for 4MB flash. #6251. Thanks @PontusO.
Documentation changes
- Document
TileGrid
tile value range limitation of 0-255. #6245. Thanks @jepler. - Improve
MP3Decoder
documentation. #6245. Thanks @jepler.
Build and infrastructure changes
- Fix clang build warnings. #6231. Thanks @jepler.
click
andtyper
version pinning and then reversion, to fix temporary build issues. #6224, #6210. Thanks @jepler and @dhalbert.
Translation additions and improvements
- Fix Russian typo. #6253. Thanks @jepler.
New boards since 7.3.0-beta.0
- (none)
Known issues
- 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 since 7.3.0-beta.0, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.