From the GitHub release page:
This is the second beta release of CircuitPython 5.4.0. This release adds basic lower power support when in
time.sleep(). The lower power work changed time keeping and may have introduced bugs. Please use 5.3.0 if you need a stable version of CircuitPython.
Download from circuitpython.org
Downloads are available from circuitpython.org! The site makes it easy to select the correct file and language for your board. The downloads page is here. Downloads are no longer available from the GitHub release pages because of the large number of files for each release.
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).
New features and improvements since 5.4.0 Beta 0
- New port for the ESP32-S2. Thanks to @tannewt, @jerryneedell, @jepler
countiomodule to count pulses. Thanks to @LearnWeaver
watchdogmodule to control built in WatchDog. Only on nRF52840 currently. Thanks to @xobs
vectoriomodule for native
displayioshapes. Thanks to @WarriorOfWire
- New pre-commit hooks. Thanks to @flameeyes
- Native module docs are now Python stubs. Thanks to @dherrada, @sommersoft and @tannewt
- Add one directional UART support to iMX RT. Thanks to @hierophect
- Add negative step support to PixelBuf. Thanks to @dunkmann00
- Add support for anonymous BLE advertising. Thanks to @xobs
- Add support for REPL over debug UART. Only on STM32. Thanks to @k0d
bytearray.decode()for improved CPython compatibility. Thanks to @theacodes
- Fix garbled audio playback when voice 0 is stopped. Thanks to @jepler
- Fix timekeeping on Spresence. Thanks to @kamtom480
- Fix exception when no bus is found to match other ports (and be compatible with find pin combo scripts.) Thanks to @arturo182
- Fix pulseio deinit issue on SAMD. Thanks to @daveputz
- Fix USB race condition on SAMD. Thanks to @hathach
microcontroller.cpu.temperaturecrash on iMX RT. Thanks to @arturo182
gamepadshiftafter lower power changes. Thanks to @jepler
- Increase max SPI speed on iMX RT. Thanks to @arturo182
- Allow setting RGBW pixels with RGB value. Thanks to @rhooper
ulab. Thanks to @jepler and @v923z
- Clock configuration improvements on STM and iMX RT. Thanks to @hierophect
- Add support for GD25S512MD flash chip. Thanks to @bd34n
- New translations for Czech (cs) and Dutch (nl). Thanks to @dustinwatts, @vooralfred, @dronecz and @jepler.
- Improved German, French and Swedish translations. Thanks to @bergdahl, @aberwag, @dglaude, Thomas Friehoff, @PTS93, and @jepler.
Full commit log is here.
New boards since 5.4.0 Beta 0
- AloriumTech Evo M51 Thanks to @jpecor
- Fluff M0 Thanks to @deshipu
- PyCubed MRAM Thanks to @maholli
- Espressif Saola 1 w/WROVER Thanks to @tannewt
- Espressif Saola 1 w/WROOM Thanks to @tannewt
- HiiBot BlueFi Thanks to @BradChan
- Nice Nano Thanks to @nicell
displayiooperations that read from an SD card (e.g.,
OnDiskBitmap) will interfere with other SD card operations and can cause lockup. To work around this problem, do not read or write files on the SD while the display is updating, and vice versa.
- See https://github.com/adafruit/circuitpython/issues for other issues.
Thank you to all who used, tested, contributed since 5.4.0 Beta 0, helped out, and participated on GitHub and/or Discord, including @aberwag, @arturo182, @bd34n, @bradchan, @DavePutz, @deshipu, @dglaude, @dhalbert, @dunkmann00, @flameeyes, @hathach, @hierophect, @jepler, @jerryneedell, @JoeBakalor, @jpecor, @kamtom480, @kattni, @k0d, @ladyada, @LearnWeaver, @maholli, @mew-cx, @nicell, @PTS93, @rhooper, @sommersoft, @spkuehl, @Teknikio, @theacodes, Thomas Friehoff, @v923z, @WarriorOfWire, @xiongyihui, @xobs and surely more we have missed. Join us on the Discord chat to collaborate.
Documentation is available in readthedocs.io.
One important feature of CircuitPython is translated control and error messages. With the help of fellow open source project Weblate, we’re making it even easier to add or improve translations. Sign in with an existing account such as Github, Google or Facebook and start contributing through a simple web interface. No forks or pull requests needed!
Builds are no longer stored as assets on this release page, because there are too many of them. Please see the Download from circuitpython.org section above.