This is the second beta release of CircuitPython 6.2.0. This release, 6.2.0-beta.1, contains fixes and improvements, most notably for RP2040, ESP32-S2, and Spresense. See Port status below for details on port stability for each port, and Known issues for known problems. If you find any issues with this release, please file an issue.
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 our new 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).
Port status
CircuitPython has a number of “ports” that are the core implementation for a variety of microcontroller families. Stability varies on a per-port basis. As of this release, atmel-samd
, nrf
, and stm
for the F4 family are stable. cxd56
, esp32s2
, raspberrypi
, and stm
for other STM chip families are being actively improved but may be missing functionality and have bugs. litex
and mimxrt10xx
are in an alpha state and will have bugs and missing functionality.
Changes since 6.2.0-beta.0
Fixes and enhancements
- Re-enable native
adafruit_bus_device
, and enable it to support duck typing. #3936. Thanks @gamblor21. - EVE graphics library: change integer arguments to floating point, to match OpenGL. #4051. Thanks @jamesbowman.
- Update
protomatter
library to supportRGBMatrix
tiling.. #4068. Thanks @jepler.
Board- and port-specific changes
- ESP32-S2: Add initial
displayio.ParallelBus
support. #4047. Thanks @kmatch98. - Metro M4 Airlift Lite: Turn on EVE graphics library to support Gameduino 3X Dazzler. #4054. Thanks @dglaude.
- raspberrypi:
- Fix
DigitalInOut.pull
to return correct value. #4052. Thanks @tannewt. - Raise
NotImplementedError
when trying to use UART. #4071. Thanks @tannewt. - Add
GP15
to available pins. #4063. Thanks @dhalbert.
- Fix
- Spresense: Update Spresense SDK and fix USB CDC after TinyUSB update. #4064. Thanks @kamtom48.
Build and infrastructure changes
- Add
CIRCUITPY_*
switches forbinascii
,errno
,json
, andre
. Update documentation about those modules. #4060. Thanks @dhalbert.
Documentation
- Update Design Guide for
CO2
andeCO2
driver parameter names. #4070. Thanks @rpavlik. - Translation additions and improvements. Thanks:
- @bergdahl (Swedish)
- @hexthat (Chinese Pinyin)
- @tawez (Polish)
New boards since 6.2.0-beta.0
(none)
Full commit log is here.
Breaking changes since 5.x
i2cslave
is nowi2cperipheral
and the class in it is changed as well.- The
stop
kwarg has been removed fromI2C.writeto()
. If no stop is desired, then usewriteto_then_readfrom
. - The default speed of busio.I2C and board.I2C is now 100khz, not 400khz as before. Use
busio.I2C
to set the speed explicitly. #3471 Thanks @caternuson, @ladyada, @hierophect and @tannewt. _bleio.ConnectionError
has be removed. Code will now raise the nativeConnectionError
instead.
Known issues
- ESP32-S2: Crash when repeatedly creating and destroying busio.I2C object on ESP32-S2. #3846.
- Writing several larger files to
CIRCUITPY
when there is no serial connection to the board can take a long time or hang. To speed up copying, open a serial (REPL) connection. #3986. - See https://ift.tt/2j1euBi for other issues.
Thanks
Thank you to all who used, tested, and contributed since 6.2.0-beta.0, including @bergdahl, @dglaude, @dhalbert, @gamblor21, @hexthat, @hierophect, @jamesbowman, @jepler, @kamtom480, @kmatch98, @ladyada, @rpavlik, @tannewt, @tawez, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.
Documentation
Documentation is available in readthedocs.io.
This release is based on MicroPython 1.9.4 @25ae98f. Support upstream MicroPython by purchasing a PyBoard (from Adafruit here) or sponsoring MicroPython on GitHub.
Translations
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!
Troubleshooting
Check out this guide for info on common problems with CircuitPython. If you are still having issues, then post to the Adafruit Support Forums and join Discord.
Assets
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.
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