This is the Beta 2 release of CircuitPython. Please use 6.0.x if you need a stable version of CircuitPython on all ports except ESP32-S2. Please use this release or newer for the ESP32-S2. See
port status below for more stability details.
Notable in this release are a number of ESP32-S2 additions and fixes, including UDP,
AnalogOut, and deep sleep.
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).
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,
stm for the F4 family are stable.
stm for other chip families are being actively improved but may be missing functionality and have bugs.
mimxrt10xx are in an alpha state and will have bugs and missing functionality. For all unstable ports, please use the latest pre-release.
New features and improvements since 6.1.0-beta.1
adafruit_bus_deviceas a native module. Included on builds for which it will fit. #3612. Thanks @gamblor21.
supervisor.run_reason. #3767. Initial
alarmsleep support (implemented for ESP32-S2 only). Thanks @dhalbert.
- Add moveable supervisor allocations. #3695. Thanks @cwalther.
- Fix README typos. #3766. Thanks @ehershey.
make_methods. #3760. Thanks @arturo182.
- Fix EVE
VertexFormat()opcode bug. #3757. Thanks @jamesbowman
- Speed up
readintoJSON parsing. #3728. Thanks @tannewt.
ulabto 1.1.0. #3694. Thanks @jepler.
EPaperDisplay: add rotation property. #3718. Thanks @jepler.
- Prevent tracebacks from accumulating in REPL. #3702. Thanks @tannewt.
nina-fwroot certificates, for consistency. #3775. Thanks @tannewt.
- Add two-minute fallback timeout on
recv. Do not throw
recv. #3776. Thanks @tannewt.
- Disallow concurrent tasks during flash erase. #3780. Thanks @tannewt.
- Added light sleep and deep sleep support for time-based alarms. Still to come: pin alarms. #3767. Thanks @dhalbert.
- Fix simultaneous use of touchpads. #3738. Thanks @microDev1.
- UDP support. #3708. Thanks @hierophect.
- Update wifi doc. #3758. Thanks @tannewt.
- Fix pin claiming bugs. #3754. Thanks @hierophect.
- Exit faster on
recvwhen TLS connection closed. #3759. Thanks @tannewt.
- TinyUSB fix for CDC connection race. #3741. Thanks @hathach.
- Support for
ps2io. #3714. Thanks @microDev1.
- Support for
AnalogOut#3514. Thanks @hierophect.
- Retry connection when getting
NOT_AUTHED. #3720. Thanks @tannewt.
- Support for
frequencyio. #3704. Thanks @microDev1.
- Update pin names from silk. #3745. Thanks @kattni.
- Do full WiFi scan when channel and BSSID are not given. #3727. Thanks @BennyE.
common_hal_mcu_delay_us(). #3740. Thanks @dhalbert.
- Disable complex arithmetic to make room for other features. #3773. Thanks @dhalbert.
- Rename misnamed ESP UART pins on some boards. #3770. Thanks @dhalbert.
- Portugese updates. #3774, #3756. #@wtuemera
- Swedish updates. #3774, #3734. Thanks @bergdahl.
- Czech updates. #3744. Thanks @vkuthan.
- German updates. #3764. Thanks @danybd.
- Spanish updates. #3764. Thanks @danybd, @begeistert.
- Japanese updates #3764, #3756. Thanks @sporeball, @aoyamaprod.
- French updates. #3756, #734. Thanks @Anton-2, @Edrig.
- Thunderpack v1.2. #3737. Thanks @jgillick.
- CP-Sapling. #3732. Thanks @skerr92.
import wifiinterferes with I2C. #3743.
- See https://github.com/adafruit/circuitpython/issues for other issues.
Thank you to @Anton-2, @aoyamaprod, @arturo182, @begeistert, @BennyE, @bergdahl, @brentru, @danybd, @d-c-d, @dhalbert, @Edrig, @ehershey, @gamblor21, @hathach, @hierophect, @jamesbowman, @jepler, @jgillick, @kattni, @ladyada, @microDev1, @skerr92, @sommersoft, @sporeball, @tannewt, @vkuthan, @weblate, @wtuemura and all who used, tested, and contributed since 6.1.0-beta.1. 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.