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CircuitPython 6.2.0-beta.1

27 Jan 21:35
@dhalbert dhalbert
6.2.0-beta.1
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CircuitPython 6.2.0-beta.1 Pre-release
Pre-release

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 support RGBMatrix 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.
  • Spresense: Update Spresense SDK and fix USB CDC after TinyUSB update. #4064. Thanks @kamtom48.

Build and infrastructure changes

  • Add CIRCUITPY_* switches for binascii, errno, json, and re. Update documentation about those modules. #4060. Thanks @dhalbert.

Documentation

  • Update Design Guide for CO2 and eCO2 driver parameter names. #4070. Thanks @rpavlik.
  • Translation additions and improvements. Thanks:

New boards since 6.2.0-beta.0

(none)

Full commit log is here.

Breaking changes since 5.x

  • i2cslave is now i2cperipheral and the class in it is changed as well.
  • The stop kwarg has been removed from I2C.writeto(). If no stop is desired, then use writeto_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 native ConnectionError 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://github.com/adafruit/circuitpython/issues 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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CircuitPython 6.2.0 Beta 0

22 Jan 18:44
@dhalbert dhalbert
6.2.0-beta.0
0dfa9fb
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CircuitPython 6.2.0 Beta 0 Pre-release
Pre-release

This is the first beta release of CircuitPython 6.2.0. Most notably, this release, 6.2.0-beta.0, provides preliminary support for the Raspberry Pi RP2040 chip, including the Raspberry Pi Pico and Adafruit's own RP2040 boards. 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. If no significant issues are found within a few days, we'll release this version as stable.

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.

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 6.1.0

Fixes and enhancements

Board- and port-specific changes

  • ESP32-S2:
    • Add TCP Server support. #3854. Thanks @hierophect.
    • Improve wifi checking about whether already connected when trying to connect. #4017. Thanks @anecdata.
    • Do not go into safe mode on watchdog reset. #4011. Thanks @dheera.
    • Initialize touch in proper order. Fixes TouchIn and TouchAlarm. #4021. Thanks @dhalbert.
    • Revert FeatherS2 status DotStar due to LDO2 issues. #4013. Thanks @jerryneedell.
  • STM32 BlackPill: Add additional board build that supports an external SPI chip. #4028. Thanks @djix123.
  • ItsyBitsy M4: Fix erroneous comment in mpconfigboard.h. #4019. Thanks @mrangen.
  • raspberrypi:

Build and infrastructure changes

(none)

Documentation

New boards since 6.1.0

Full commit log is here.

Breaking changes since 5.x

  • i2cslave is now i2cperipheral and the class in it is changed as well.
  • The stop kwarg has been removed from I2C.writeto(). If no stop is desired, then use writeto_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 native ConnectionError instead.

Known issues

  • ESP32-S2: Crash when repeatedly creating and destroying busio.I2C object on ESP32-S2. #3846.
  • Built-in adafruit_bus_device has been disabled due to issues (#3859, #3856), please install the version from the Library Bundle
  • 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://github.com/adafruit/circuitpython/issues for other issues.

Thanks

Thank you to all who used, tested, and contributed since 6.1.0, including @DavePutz, @dhalbert, @dheera, @djix123, @hierophect, @iot49, @jepler, @jerryneedell, @mrangen, @tannewt, and many others on 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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CircuitPython 6.1.0

21 Jan 03:11
@dhalbert dhalbert
6.1.0
c4f0325
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CircuitPython 6.1.0

This is CircuitPython 6.1.0, the latest minor revision of CircuitPython, and is a new stable release. See Port status below for details on port stability, and Known Issues for known problems. If you find any issues with this release, please file an issue.

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.

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, and stm for other 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 6.0.1

The changes are extensive and too long to list here. Please see these releases for details:

New boards since 6.0.1

Breaking changes since 5.x

  • i2cslave is now i2cperipheral and the class in it is changed as well.
  • The stop kwarg has been removed from I2C.writeto(). If no stop is desired, then use writeto_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 native ConnectionError instead.

Known issues

  • FeatherS2: The DotStar status implementation causes issues with control of LDO2. See #4012. This change has been reverted builds beyond 6.1.0: please use an "Absolute Newest" build or a release later than 6.1.0.
  • ESP32-S2: Crash when repeatedly creating and destroying busio.I2C object on ESP32-S2. #3846.
  • Built-in adafruit_bus_device has been disabled due to issues (#3859, #3856), please install the version from the Library Bundle
  • 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://github.com/adafruit/circuitpython/issues for other issues.

Thanks

Thank you to all who used, tested, and contributed since 6.0.1. 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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CircuitPython 6.1.0 Release Candidate 1

15 Jan 03:03
@dhalbert dhalbert
6.1.0-rc.1
c4f0325
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CircuitPython 6.1.0 Release Candidate 1 Pre-release
Pre-release

This is the second release candidate of CircuitPython 6.1.0. See Port status below for details on port stability, and Known Issues for known problems. If you find any issues with this release, please file an issue. If no significant issues are found within a few days, we'll release this version as stable.

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.

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, and stm for other 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 6.1.0 Release Candidate 0

Fixes and enhancements

Board- and port-specific changes

  • atmel-samd and nrf: Tick counter was being truncated when copied. #3939. Thanks @dhalbert.
  • atmel-samd:
  • nrf:
    • Fix BLE timeout check for start_scan(). Round float BLE timing values instead of truncating. #3942, #2930. Thanks @dhalbert.
    • Don't check length on gattc write for remote characteristics or descriptors. #3993. Thanks @dhalbert.
  • MagTag:
  • ESP32-S2:
    • Implement I2SAudioOut. #3733. Thanks @jepler.
    • Convert README to .rst. #3945. Thanks @2bndy5.
    • Correct data length for socket.recvfrom_into(). #3955. Thanks @caiokat.
    • Add sys.platform. #3954. Thanks @anecdata.
    • FeatherS2: Use DotStar for status LED. #3930. Thanks @jerryneedell.
    • Add network.authmode. #3944. Thanks @BennyE.
    • Add debug logging for all WiFi events; remove unneeded WiFi setup call. #3903. Thanks @anecdata.
    • Reduce power consumption when TouchAlarm not in use; allow multiple TouchAlarm pins. #3969. Thanks @microdev1.
  • TG-Watch: Multiple revisions, including frozen modules. #3991. Thanks @TG-Techie.

Build and infrastructure changes

  • Pass DEBUG make flag into code with CIRCUITPY_DEBUG preprocessor macro. #3957. Thanks @dhalbert.
  • Shrink some German builds that no longer fit. #3983. Thanks @dhalbert.
  • ESP32-S2: Fix make flash. #3982. Thanks @jepler.
  • Add robots.txt so search engines won't crawl obsolete documentation in ReadTheDocs. #3291. Thanks @dhalbert.
  • Bump key for GitHub Actions cache to avoid bad cached data. #3997. Thanks @dhalbert.
  • Update uzlib to version 2.9.5, used in unix build. #4002. Thanks @jepler.
  • Fix parallel build problem for unix build. #4004. Thanks @jepler.

Documentation

New boards since 6.1.0 Release Candidate 0

  • Adafruit Feather ESP32-S2 mini module with and without TFT display. #3959. Thanks @ladyada.
  • Adafruit NeoPixel Trinkey. #3978. Thanks @ladyada.

Full commit log is here.

Breaking changes since 5.x

  • i2cslave is now i2cperipheral and the class in it is changed as well.
  • The stop kwarg has been removed from I2C.writeto(). If no stop is desired, then use writeto_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 native ConnectionError instead.

Known issues

  • ESP32-S2: Crash when repeatedly creating and destroying busio.I2C object on ESP32-S2. #3846.
  • Built-in adafruit_bus_device has been disabled due to issues (#3859, #3856), please install the version from the Library Bundle
  • 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://github.com/adafruit/circuitpython/issues for other issues.

Thanks

Thank you to all who used, tested, and contributed since 6.1.0 Release Candidate 0, including @2bndy5, @anecdata, @BennyE, @BumblebeeMan, @caiokat, @caternuson, @dhalbert, @hugodahl, @jepler, @jerryneedell, @kattni, @ladyada, @microdev1, @sommersoft, @tannewt, @TG-Techie, @weblate, @wtuemura, and many others on 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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CircuitPython 6.1.0 Release Candidate 0

06 Jan 02:42
@dhalbert dhalbert
6.1.0-rc.0
7e59ff3
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CircuitPython 6.1.0 Release Candidate 0 Pre-release
Pre-release

This is the first release candidate of CircuitPython 6.1.0. See Port status below for details on port stability, and Known Issues for known problems. If you find any issues with this release, please file an issue. If no issues are found within a few days, we'll release this version as stable.

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.

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, and stm for other 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.

New features and improvements since 6.1.0 Beta 3

Fixes and enhancements

Board- and port-specific changes

Documentation

Full commit log is here.

Breaking changes since 5.x

  • i2cslave is now i2cperipheral and the class in it is changed as well.
  • The stop kwarg has been removed from I2C.writeto(). If no stop is desired, then use writeto_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 native ConnectionError instead.

New boards since 6.1.0 Beta 3

(none)

Known issues

Thanks

Thank you to all who used, tested, and contributed since 6.1.0 Beta 3, including @askpatrickw, @bergdahl, @brrzap, @bwshockley, @DavePutz, @dglaude, @dhalbert, @hugodahl, @jepler, @kattni, @ladyada, @microdev1, @oonid, @tannewt, @UnexpectedMaker, @wtuemurua, and many others on 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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CircuitPython 6.1.0 Beta 3

30 Dec 22:40
@jepler jepler
6.1.0-beta.3
5698b8b
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CircuitPython 6.1.0 Beta 3 Pre-release
Pre-release

This is the Beta 3 release of CircuitPython 6.1. 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, bringing us closer to a stable release for that port. There are 2 new boards and one new board revision included in this release.

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.

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, and stm for other 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. For all unstable ports, please use the latest pre-release.

New features and improvements since 6.1.0-beta.2

All ports

ESP32-S2

SAMD21 ("M0")

  • Remove warning about lack of support on M0 from rotaryio (#3806), thanks @deshipu

SAMD51 ("M4")

  • SAMD51: change of DAC power setting (#3880), thanks @digixx
  • FrequencyIn: do not raise in interrupt handler (#3867), thanks @dhalbert

AirLift

  • Rename misnamed ESP UART pins on some boards. #3770. Thanks @dhalbert.

STM

Translations

fomu

New boards

Known issues

Thanks

Thank you to @Anton-2, @BennyE, @bergdahl, @cwalther, @deshipu, @dhalbert, @digixx, @djix123, @hierophect, @hugodahl, @jepler, @mcauser, @microdev1, @ryevertigo, @skerr92, @skieast, @StackRduino, @tannewt, @vkuthan, @wtuemura, @xobs, and all who used, tested, and contributed since 6.1.0-beta.2. 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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CircuitPython 6.0.1

28 Dec 19:29
@dhalbert dhalbert
6.0.1
eda1f81
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CircuitPython 6.0.1

This is CircuitPython 6.0.1, the second 6.0.x stable release. This release fixes regressions in BLE and FrequencyIn() that prevent these functions from operating properly. The release also includes a considerable speedup in JSON parsing.

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. (If you see the unstable release 6.0.0-rc.2 when you browse circuitpython.org, that release is older. Use this one.)

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, and stm for other 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.

Fixes and improvements since 6.0.0

  • _bleio: Characteristic and Descriptor max_lengths can be zero. Better argument validation for start_scan()andstart_advertising()`. #3861. Thanks @dhalbert.
  • frequencyio.FrequencyIn() caused a crash. #3867. Thanks @dhalbert.
  • json: Speed up parsing dramatically. #3728. Thanks @tannewt.

Breaking changes since 5.x

  • i2cslave is now i2cperipheral and the class in it is changed as well.
  • The stop kwarg has been removed from I2C.writeto(). If no stop is desired, then use writeto_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.
  • _bleio.ConnectionError has been removed. Code will now raise the native ConnectionError instead.
  • Removed Mixer, RawSample, and WaveFile from audioio. They are now only available in audiocore. 5.x has them in both modules.

New boards since 5.3.1 (38 boards)

  • Adafruit BLM Badge
  • Adafruit Feather M4 CAN
  • Adafruit Matrix Portal M4
  • Adafruit Metro ESP32S2
  • Adafruit Metro M7 1011
  • Adafruit QT Py
  • Adafruit QT Py Haxpress
  • AloriumTech Evo M51
  • Atmel SAME54 Xplained
  • BDMicro Vina D51
  • BH Dynamics DynOSSAT-EDU-EPS
  • BH Dynamics DynOSSAT-EDU-OBC
  • BLE-SS Dev Board Multi Sensor
  • Electronic Cats Bastwifi
  • Espressif Saola 1 w/WROOM
  • Espressif Saola 1 w/WROVER
  • Fluff M0
  • HiiBot BlueFi
  • Ikigaisense Vita nRF52840
  • Loc Ber M4
  • MakerDiary M60 Keyboard
  • MakerDiary nRF52840 M.2 devkit
  • Makerdairy Pitaya Go
  • Muselab nano ESP32-S2
  • Nice Nano
  • Nordic PCA10100
  • OpenMV H7
  • Picoplanet
  • PyCubed MRAM
  • Raytac MDBT50Q-DB-40
  • STM32F746 Discovery
  • STM32F746 Nucleo
  • Seeeduino Wio Terminal
  • Simmel
  • Teensy 4.1
  • TinkeringTech ScountMakes
  • UnexpectedMaker FeatherS2
  • microDev microS2 (ESP32-S2)

Known issues

Thanks

Thank you to all who used, tested, and contributed to this bug fix release: @catequalsgood, @cls22, @d-c-d, @dhalbert, @jepler, @kevinjwalters, @ladyada, @tannewt. 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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CircuitPython 6.1.0 Beta 2

03 Dec 18:21
@dhalbert dhalbert
6.1.0-beta.2
fb90f51
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CircuitPython 6.1.0 Beta 2 Pre-release
Pre-release

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.

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, and stm for other 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. For all unstable ports, please use the latest pre-release.

New features and improvements since 6.1.0-beta.1

All ports

  • Implemented adafruit_bus_device as a native module. Included on builds for which it will fit. #3612. Thanks @gamblor21.
  • Added microcontroller.reset_reason and supervisor.run_reason. #3767. Initial alarm sleep support (implemented for ESP32-S2 only). Thanks @dhalbert.
  • Add moveable supervisor allocations. #3695. Thanks @cwalther.
  • Fix README typos. #3766. Thanks @ehershey.
  • Fix displayio.ColorConverter make_ methods. #3760. Thanks @arturo182.
  • Fix EVE VertexFormat() opcode bug. #3757. Thanks @jamesbowman
  • Speed up readinto JSON parsing. #3728. Thanks @tannewt.
  • Update ulab to 1.1.0. #3694. Thanks @jepler.
  • EPaperDisplay: add rotation property. #3718. Thanks @jepler.
  • Prevent tracebacks from accumulating in REPL. #3702. Thanks @tannewt.

ESP32-S2

SAMD21 ("M0")

  • Disable complex arithmetic to make room for other features. #3773. Thanks @dhalbert.

AirLift

  • Rename misnamed ESP UART pins on some boards. #3770. Thanks @dhalbert.

Translations

New boards

Known issues

Thanks

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

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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CircuitPython 6.1.0 Beta 1

20 Nov 01:07
@tannewt tannewt
6.1.0-beta.1
2f14609
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CircuitPython 6.1.0 Beta 1 Pre-release
Pre-release

This is the second beta release of 6.1.0. (This first was broken.) It includes many changes that were done while 6.0.0 release candidates were in pre-release. 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.

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.

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, and stm for other 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. For all unstable ports, please use the latest pre-release.

New features and improvements since 6.0.0

All ports

  • Added grayscale E-Ink support. (IL0373 control chip.) Thanks to @tannewt
  • Added support for transparent_color support in ColorConverter. Allows transparency with full color bitmaps. Thanks to @jensechu
  • Fix accumulating tracebacks in REPL. Thanks to @DavePutz
  • Luma computation for grayscale conversion corrected. Thanks to @tannewt
  • Fixed unhiding a TileGrid. Thanks to @FoamyGuy
  • Fixed sharp memory display memory error. Thanks to @jepler
  • Added native binascii to most boards. Thanks to @dhalbert
  • README typo fix. Thanks to @ehagerty
  • Stub (.pyi) fixes and CI check added. Thanks to @sw23
  • Translation updates for French, Portuguese (Brazil), and Swedish. Thanks to @bergdahl, @Edrig, @hexthat, @jepler, and @wtuemura.

ESP32-S2

  • Fix TLS certificate errors when root certificate is signed by SHA-1. (Fixes io.adafruit.com and others.) Thanks to @jepler, @tannewt and @BennyE
  • time.sleep() can now be interrupted by CTRL-C. Thanks to @DavePutz
  • touchio, rotaryio, watchdog, and countio support added. Thanks to @microdev1
  • canio support added. Thanks to @jepler
  • Added more Network parameters. Thanks to @astrobokonon
  • Fix I2C crashing. Thanks to @jepler
  • Fixed brief AP mode when starting wifi. Thanks to @BennyE
  • Fixed stack size. Thanks to @jepler
  • Fixed Socket.recv behavior to return available bytes immediately when fewer than requested. Thanks to @tannewt
  • Fixed concurrent NeoPixel strip use. Thanks to @hierophect and @ladyada
  • Fixed wifi reset. Thanks to @astrobokonon
  • Add recv_into argument size check. Thanks to @gamblor21
  • Added native display init for MagTag eInk display. Thanks to @tannewt and @ladyada
  • Fixed SCL and SDA pins for UnexpectedMaker FeatherS2. Thanks to @askpatrickw
  • Add default SPI, UART and I2C busses for UnexpectedMaker FeatherS2 and microS2. Thanks to @FoamyGuy and @microdev1
  • Added IO pin naming to Metro ESP32-S2. Thanks to @kattni and @ladyada
  • ESP32-S2 README improvements. Thanks to @hierophect

See the 6.0.0 release notes for breaking changes since 5.x.

New boards since 6.0.0

Known issues

Thanks

Thank you to all who used, tested, and contributed since 6.0.0. 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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CircuitPython 6.1.0 Beta 0

17 Nov 23:17
@tannewt tannewt
6.1.0-beta.0
e2b5ae2
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CircuitPython 6.1.0 Beta 0 Pre-release
Pre-release

We only released beta 0 to GitHub because it had a severe bug. It was never on the website or blog. So, please see Beta 1 for full details.

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