CircuitPython 7.1.0

This is CircuitPython 7.1.0, the latest minor revision of CircuitPython, and is a new stable release.

Notable additions to 7.1.0 since 7.0.0

• Initial port for Raspberry Pi Broadcom-based boards.
• Preliminary support for asyncio cooperative multitasking.
• bitmaptools: dithering and alphablend are new.
• keypad.Events now include timestamps.
• framebufferio: support for IS31FL3741.
• Espressif now provides I2CPeripheral, WiFi monitor mode, setting MAC address, ESP32-C3 support, ParallelImageCapture.
• gifio.GifWriter is new.
• HID now provides boot device and feature report support.
• rotaryio now allows setting the divisor of counts per transition.
• SAMD now provides watchdog, and alarm with sleep.
• SAMx5 boards now all have sleep support.
• The STM port now provides STM32L4R5 support.
• MicroPython 1.17 has been merged in.
• Russian translation.

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, atmel-samd, cxd56 (Spresense), esp32s2, nrf,raspberrypi, stm for the F4 family are stable. stm for other STM chip families is being actively improved but may be missing functionality and have bugs. broadcom (Raspberry Pi), litex and mimxrt10xx are in an alpha state and will have bugs and missing functionality.

New boards since 7.0.0

• Adafruit Feather ESP32-S2
• Adafruit Feather ESP32-S2 TFT
• Adafruit KB2040
• Adafruit QT Py ESP32-S2
• AIThinker ESP32-C3S_Kit
• Challenger NB RP204
• Cytron Maker Nano RP2040
• JPConstantineau Pykey60
• Lolin/Wemos S2-Pico
• Melopero Shake RP2040
• MicroDev microC3
• Oak Development Technologies Bread 2040
• Raspberry Pi 4B
• Raspberry Pi Compute Module 4 IO Board
• Raspberry Pi Zero 2W
• Seed XIAO variant build for HID devices
• Solder Party RP2040 Stamp
• Swan R5

Changes since 7.1.0-rc.1

This release is a relabeling of 7.1.0-rc.1 and is otherwise the same as that release.

Known issues

• See https://github.com/adafruit/circuitpython/issues for open issues, including issues still to be addressed for 7.x.x.

Thanks

Thank you to all who used, tested, and contributed since 7.0.0, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.

CircuitPython 7.1.0 Release Candidate 1

This is CircuitPython 7.1.0-rc.1, the second release candidate for CircuitPython 7.1.0. We believe it is stable, but want to give time for further testing.

Notable additions to 7.1.0 since 7.0.0

• Initial port for Raspberry Pi Broadcom-based boards.
• Preliminary support for asyncio cooperative multitasking.
• bitmaptools: dithering and alphablend are new.
• keypad.Events now include timestamps.
• framebufferio: support for IS31FL3741.
• Espressif now provides I2CPeripheral, WiFi monitor mode, setting MAC address, ESP32-C3 support, ParallelImageCapture.
• gifio.GifWriter is new.
• HID now provides boot device and feature report support.
• rotaryio now allows setting the divisor of counts per transition.
• SAMD now provides watchdog, and alarm with sleep.
• SAMx5 boards now all have sleep support.
• The STM port now provides STM32L4R5 support.
• MicroPython 1.17 has been merged in.
• Russian translation.

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, atmel-samd, cxd56 (Spresense), esp32s2, nrf,raspberrypi, stm for the F4 family are stable. stm for other STM chip families is being actively improved but may be missing functionality and have bugs. broadcom (Raspberry Pi), litex and mimxrt10xx are in an alpha state and will have bugs and missing functionality.

New boards since 7.0.0

• Adafruit Feather ESP32-S2. #5517. Thanks @ladyada.
• Adafruit Feather ESP32-S2 TFT. #5742, #5741, #5738, #5573, #5570. Thanks @ladyada.
• Adafruit KB2040. #5550. Thanks @ladyada.
• Adafruit QT Py ESP32-S2. #5741, #5738, #5622, #5621, #5620. Thanks @ladyada.
• AIThinker ESP32-C3S_Kit. #5409. Thanks @skieast.
• Challenger NB RP204. #5395. Thanks @pontus0.
• Cytron Maker Nano RP2040. #5673. Thanks @waiweng83.
• JPConstantineau Pykey60. #5507, #5497, #5365. Thanks @jpconstantineau.
• Lolin/Wemos S2-Pico. #5464. Thanks @skieast.
• Melopero Shake RP2040. #5465, #5372. Thanks @melopero.
• MicroDev microC3. #5404. Thanks @microdev1.
• Oak Development Technologies Bread 2040. #5368. Thanks @skerr92.
• Raspberry Pi 4B. #5610. Thanks @tannewt.
• Raspberry Pi Compute Module 4 IO Board. #5610. Thanks @tannewt.
• Raspberry Pi Zero 2W. #5610. Thanks @tannewt.
• Seed XIAO variant build for HID devices. #5442. Thanks @jpconstantineau.
• Solder Party RP2040 Stamp. #5504. Thanks @solderparty.
• Swan R5. #5403. Thanks @blues.

Changes since 7.1.0-rc.0

Fixes and enhancements

• Update frozen libraries. #5778. Thanks @dhalbert.

Port and board-specific changes

Individual boards

• Adafruit Feather ESP32-S2: turn on I2C power by default. #5779, #5776. Thanks @ladyada and @dhalbert.

Documentation changes

• [none in this release]

Build and infrastructure changes

• [none in this release]

Translation additions and improvements

• [none in this release]

Known issues

• See https://github.com/adafruit/circuitpython/issues for open issues, including issues still to be addressed for 7.x.x.

Thanks

Thank you to all who used, tested, and contributed since 7.0.0, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.

CircuitPython 7.1.0 Release Candidate 0

This is CircuitPython 7.1.0-rc.0, the initial release candidate for CircuitPython 7.1.0. We believe it is stable, but want to give time for further testing.

Notable additions to 7.1.0 since 7.0.0

• Initial port for Raspberry Pi Broadcom-based boards.
• Preliminary support for asyncio cooperative multitasking.
• bitmaptools: dithering and alphablend are new.
• keypad.Events now include timestamps.
• framebufferio: support for IS31FL3741.
• Espressif now provides I2CPeripheral, WiFi monitor mode, setting MAC address, ESP32-C3 support, ParallelImageCapture.
• gifio.GifWriter is new.
• HID now provides boot device and feature report support.
• rotaryio now allows setting the divisor of counts per transition.
• SAMD now provides watchdog, and alarm with sleep.
• SAMx5 boards now all have sleep support.
• The STM port now provides STM32L4R5 support.
• MicroPython 1.17 has been merged in.
• Russian translation.

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, atmel-samd, cxd56 (Spresense), esp32s2, nrf,raspberrypi, stm for the F4 family are stable. stm for other STM chip families is being actively improved but may be missing functionality and have bugs. broadcom (Raspberry Pi), litex and mimxrt10xx are in an alpha state and will have bugs and missing functionality.

Changes since 7.0.0

The full commit log is here.

Fixes and enhancements

• Update frozen libraries. #5773. Thanks @dhalbert. [buggy: will be fixed in 7.1.0-rc.1]
• Fix recording of alarm.wake_alarm on real and simulated deep sleep. #5762. Thanks @dhalbert.
• Fix pixelbuf off-by-one error. #5748: backport of #5746. Thanks @dunkmann00.
• Update ulab. #5740. Thanks @jepler.
• Fix traceback printing crash for non-native exceptions. #5723. Thanks @timhawes and @microdev1.

Port and board-specific changes

• [none in this release]

Individual boards

New boards Since 7.0.0

• Adafruit Feather ESP32-S2. #5517. Thanks @ladyada.
• Adafruit Feather ESP32-S2 TFT. #5742, #5741, #5738, #5573, #5570. Thanks @ladyada.
• Adafruit KB2040. #5550. Thanks @ladyada.
• Adafruit QT Py ESP32-S2. #5741, #5738, #5622, #5621, #5620. Thanks @ladyada.
• AIThinker ESP32-C3S_Kit. #5409. Thanks @skieast.
• Challenger NB RP204. #5395. Thanks @pontus0.
• Cytron Maker Nano RP2040. #5673. Thanks @waiweng83.
• JPConstantineau Pykey60. #5507, #5497, #5365. Thanks @jpconstantineau.
• Lolin/Wemos S2-Pico. #5464. Thanks @skieast.
• Melopero Shake RP2040. #5465, #5372. Thanks @melopero.
• MicroDev microC3. #5404. Thanks @microdev1.
• Oak Development Technologies Bread 2040. #5368. Thanks @skerr92.
• Raspberry Pi 4B. #5610. Thanks @tannewt.
• Raspberry Pi Compute Module 4 IO Board. #5610. Thanks @tannewt.
• Raspberry Pi Zero 2W. #5610. Thanks @tannewt.
• Seed XIAO variant build for HID devices. #5442. Thanks @jpconstantineau.
• Solder Party RP2040 Stamp. #5504. Thanks @solderparty.
• Swan R5. #5403. Thanks @blues.

Documentation changes

• Fix typos. #5731. Thanks @rsbohn.

Build and infrastructure changes

• Fix circuitpython.org PR build. #5715: backport of #5702 and #5701. Thanks @tannewt.

Translation additions and improvements

• [none in this release]

Known issues

• See https://github.com/adafruit/circuitpython/issues for open issues, including issues still to be addressed for 7.x.x.

Thanks

Thank you to all who used, tested, and contributed since 7.0.0, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.

CircuitPython 7.1.0 Beta 3

This is CircuitPython 7.1.0-beta.3, the fourth beta release for CircuitPython 7.1.0. It is relatively stable, but contains issues we may still address for 7.1.0. This release fixes a regression in 7.1.0-beta.2 that caused problems with displayio and possibly other problems.

Notable additions to 7.1.0 since 7.0.0

• Initial port for Raspberry Pi Broadcom-based boards.
• Preliminary support for asyncio cooperative multitasking.
• bitmaptools: dithering and alphablend are new.
• keypad.Events now include timestamps.
• framebufferio: support for IS31FL3741.
• Espressif now provides I2CPeripheral, WiFi monitor mode, setting MAC address, ESP32-C3 support, ParallelImageCapture.
• gifio.GifWriter is new.
• HID now provides boot device and feature report support.
• rotaryio now allows setting the divisor of counts per transition.
• SAMD now provides watchdog, and alarm with sleep.
• SAMx5 boards now all have sleep support.
• The STM port now provides STM32L4R5 support.
• MicroPython 1.17 has been merged in.
• Russian translation.

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, atmel-samd, cxd56 (Spresense), esp32s2, nrf,raspberrypi, stm for the F4 family are stable. stm for other STM chip families is being actively improved but may be missing functionality and have bugs. broadcom (Raspberry Pi), litex and mimxrt10xx are in an alpha state and will have bugs and missing functionality.

Changes since 7.0.0

The full commit log is here.

Fixes and enhancements

• [no general changes in this release]

Port and board-specific changes

SAMx

• Fix SAMD TAMPER interrupt clearing in PinAlarm; fixes some second-order bugs, including in displayio. #5708. Thanks @dhalbert.

Individual boards

• [no changes for individual boards in this release]

New boards Since 7.0.0

• Adafruit Feather ESP32-S2. #5517. Thanks @ladyada.
• Adafruit Feather ESP32-S2 TFT. #5573, #5570. Thanks @ladyada.
• Adafruit KB2040. #5550. Thanks @ladyada.
• Adafruit QT Py ESP32-S2. #5622, #5621, #5620. Thanks @ladyada.
• AIThinker ESP32-C3S_Kit. #5409. Thanks @skieast.
• Challenger NB RP204. #5395. Thanks @pontus0.
• Cytron Maker Nano RP2040. #5673. Thanks @waiweng83.
• JPConstantineau Pykey60. #5507, #5497, #5365. Thanks @jpconstantineau.
• Lolin/Wemos S2-Pico. #5464. Thanks @skieast.
• Melopero Shake RP2040. #5465, #5372. Thanks @melopero.
• MicroDev microC3. #5404. Thanks @microdev1.
• Oak Development Technologies Bread 2040. #5368. Thanks @skerr92.
• Raspberry Pi 4B. #5610. Thanks @tannewt.
• Raspberry Pi Compute Module 4 IO Board. #5610. Thanks @tannewt.
• Raspberry Pi Zero 2W. #5610. Thanks @tannewt.
• Seed XIAO variant build for HID devices. #5442. Thanks @jpconstantineau.
• Solder Party RP2040 Stamp. #5504. Thanks @solderparty.
• Swan R5. #5403. Thanks @blues.

Documentation changes

• [no documentation changes in this release]

Build and infrastructure changes

• circuitpython-org now uses main. Check that branch for updates. #5712. Thanks @jepler.

Translation additions and improvements

• [none in this release]

Known issues

• See https://github.com/adafruit/circuitpython/issues for other issues, including issues still to be addressed for 7.x.x.

Thanks

Thank you to all who used, tested, and contributed since 7.0.0, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.

CircuitPython 7.1.0 Beta 2

This is CircuitPython 7.1.0-beta.2, the third beta release for CircuitPython 7.1.0. It is relatively stable, but contains issues we may still address for 7.1.0.

Notable additions to 7.1.0 since 7.0.0

• Initial port for Raspberry Pi Broadcom-based boards.
• Preliminary support for asyncio cooperative multitasking.
• bitmaptools: dithering and alphablend are new.
• keypad.Events now include timestamps.
• framebufferio: support for IS31FL3741.
• Espressif now provides I2CPeripheral, WiFi monitor mode, setting MAC address, ESP32-C3 support, ParallelImageCapture.
• gifio.GifWriter is new.
• HID now provides boot device and feature report support.
• rotaryio now allows setting the divisor of counts per transition.
• SAMD now provides watchdog, and alarm with sleep.
• SAMx5 boards now all have sleep support.
• The STM port now provides STM32L4R5 support.
• MicroPython 1.17 has been merged in.
• Russian translation.

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).

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, atmel-samd, cxd56 (Spresense), esp32s2, nrf,raspberrypi, stm for the F4 family are stable. stm for other STM chip families is being actively improved but may be missing functionality and have bugs. broadcom (Raspberry Pi), litex and mimxrt10xx are in an alpha state and will have bugs and missing functionality.

Changes since 7.0.0

The full commit log is here.

Fixes and enhancements

• sdcardio. Idle state not needed during early init. #5688. Thanks @jepler.
• Fix _bleio HCI support. #5683. Thanks @dhalbert.
• Update _stage to avoid backlight problems. #5657. Thanks @deshipu.
• Allocate busio.UART object more carefully. #5647. Thanks @jepler.
• Update ulab to 3.3.7. #5642. Thanks @jepler.
• Make bitbangio.SPI keyword args match busio.SPI. #5641. Thanks @jepler.
• Update frozen libraries. #5700. Thanks @dhalbert.

Port and board-specific changes

Broadcom

• Full busio.I2C support. #5648. Thanks @tannewt.

RP2040

• Use proper slice number for PWMOut. #5667. Thanks @dhalbert.
• Protect nvm writes from interrupts. #5663. Thanks @FoamyGuy.
• Use longer clock-stretch timeout for RP2040 zero-byte I2C writes. #5656. Thanks @dhalbert.

SAMx

• Fix FrequencyIn. #5665. Thanks @dhalbert.
• Enable sleep on all SAM5x boards. #5634. Thanks @dhalbert.

Spresense

• Fix time.time(). #5635. Thanks @kamtom480.

Individual boards

• [no changes for individual boards]

New boards Since 7.0.0

• Adafruit Feather ESP32-S2. #5517. Thanks @ladyada.
• Adafruit Feather ESP32-S2 TFT. #5573, #5570. Thanks @ladyada.
• Adafruit KB2040. #5550. Thanks @ladyada.
• Adafruit QT Py ESP32-S2. #5622, #5621, #5620. Thanks @ladyada.
• AIThinker ESP32-C3S_Kit. #5409. Thanks @skieast.
• Challenger NB RP204. #5395. Thanks @pontus0.
• Cytron Maker Nano RP2040. #5673. Thanks @waiweng83.
• JPConstantineau Pykey60. #5507, #5497, #5365. Thanks @jpconstantineau.
• Lolin/Wemos S2-Pico. #5464. Thanks @skieast.
• Melopero Shake RP2040. #5465, #5372. Thanks @melopero.
• MicroDev microC3. #5404. Thanks @microdev1.
• Oak Development Technologies Bread 2040. #5368. Thanks @skerr92.
• Raspberry Pi 4B. #5610. Thanks @tannewt.
• Raspberry Pi Compute Module 4 IO Board. #5610. Thanks @tannewt.
• Raspberry Pi Zero 2W. #5610. Thanks @tannewt.
• Seed XIAO variant build for HID devices. #5442. Thanks @jpconstantineau.
• Solder Party RP2040 Stamp. #5504. Thanks @solderparty.
• Swan R5. #5403. Thanks @blues.

Documentation

• [no documentation changes]

Build and infrastructure changes

• Partial submodule fetching using sha. #5687, #5681. Thanks @tannewt.
• Update file formatting due to blacken and uncrustify updates. #5670. Thanks @hdalbert.
• Fix running traceback test. #5649. Thanks @microdev1.
• Add tests for aesio. #5638. Thanks @jepler.
• Fix CI dependency fetching for automated circuitpython.org updates. #5636. Thanks @dhalbert.
• Add board_deinit() for all boards that lacked it. #5634. Thanks @dhalbert.
• Add make fetch-submodules, to do partial fetches of submodules. #5627. Thanks @tannewt.
• Reorder pins to match silk, for automated pin diagrams. #5652, #5626. Thanks @kattni.

Translation additions and improvements

• Thanks for translations:
  • @Pixel-Clay (Russian)

Known issues

• See https://github.com/adafruit/circuitpython/issues for other issues, including issues still to be addressed for 7.x.x.

Thanks

Thank you to all who used, tested, and contributed since 7.0.0, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.

CircuitPython 7.1.0 Beta 1

This is CircuitPython 7.1.0-beta.1, the second beta release for CircuitPython 7.1.0. It is relatively stable, but contains issues we may still address for 7.1.0.

Notable additions to 7.1.0 since 7.0.0

• Initial port for Raspberry Pi Broadcom-based boards.

• Preliminary support for asyncio cooperative multitasking.

• bitmaptools: dithering and alphablend are new.

• keypad.Events now include timestamps.

• framebufferio: support for IS31FL3741.

• Espressif now provides I2CPeripheral, WiFi monitor mode, setting MAC address, ESP32-C3 support, ParallelImageCapture`.

• gifio.GifWriter is new.

• HID now provides boot device and feature report support.

• rotaryio now allows setting the divisor of counts per transition.

• SAMD now provides watchdog, and alarm with sleep.

• The STM port now provides STM32L4R5 support.

• MicroPython 1.17 has been merged in.

• Russian translation.

• Preliminary support for asyncio is included. Use the CircuitPython asyncio library.

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, atmel-samd, cxd56 (Spresense), esp32s2, nrf,raspberrypi, stm for the F4 family are stable. stm for other STM chip families is being actively improved but may be missing functionality and have bugs. broadcom (Raspberry Pi), litex and mimxrt10xx are in an alpha state and will have bugs and missing functionality.

Changes since 7.0.0

The full commit log is here.

Fixes and enhancements

• bitmaptools: fix dithering and other bugs. #5616, #5605. Thanks @jepler.
• Fix when to write boot_out.txt. #5611. Thanks @jepler.
• Fix tracebacks. #5608, #5574. Thanks @microdev1.
• Don't run code.py when restarting in raw mode. #5602. Thanks @aivarannamaa.
• Fix camera constructor signature. #5596. Thanks @kamtom480.
• Update frozen libraries, notably adafruit_hid to support non-US keyboard layouts. #5587. Thanks @dhalbert.
• framebufferio: support for IS31FL3741. #5584. Thanks @gamblor21.

Port and board-specific changes

Broadcom

• Initial broadcom port for Raspberry Pi. #5610. Thanks @tannewt.

Espressif

• wifi: Allow setting access point MAC address. #5593. Thanks @anecdata.
• wifi: Allow setting station MAC address; validate SSID length. #5571. Thanks @anecdata.

SAMx

• Use -O2 without -fno-inline-functions on SAME54 builds. #5579. Thanks @jepler.

Individual boards

• Adafruit Feather ESP32-S2: fix name of I2C power control pin. #5595. Thanks @anecdata.
• Adafruit Feather ESP32-S2: reorder pins for preferred naming. #5626. Thanks @kattni.

New boards Since 7.0.0

• Adafruit Feather ESP32-S2. #5517. Thanks @ladyada.
• Adafruit Feather ESP32-S2 TFT. #5573, #5570. Thanks @ladyada.
• Adafruit KB2040. #5550. Thanks @ladyada.
• Adafruit QT Py ESP32-S2. #5622, #5621, #5620. Thanks @ladyada.
• AIThinker ESP32-C3S_Kit. #5409. Thanks @skieast.
• Challenger NB RP204. #5395. Thanks @pontus0.
• JPConstantineau Pykey60. #5507, #5497, #5365. Thanks @jpconstantineau.
• Lolin/Wemos S2-Pico. #5464. Thanks @skieast.
• Melopero Shake RP2040. #5465, #5372. Thanks @melopero.
• MicroDev microC3. #5404. Thanks @microdev1.
• Oak Development Technologies Bread 2040. #5368. Thanks @skerr92.
• Raspberry Pi 4B. #5610. Thanks @tannewt.
• Raspberry Pi Compute Module 4 IO Board. #5610. Thanks @tannewt.
• Raspberry Pi Zero 2W. #5610. Thanks @tannewt.
• Seed XIAO variant build for HID devices. #5442. Thanks @jpconstantineau.
• Solder Party RP2040 Stamp. #5504. Thanks @solderparty.
• Swan R5. #5403. Thanks @blues.

Documentation

• Fix keypad.ShiftRegisterKeys. #5585. Thanks @tekktrik.

Build and infrastructure changes

• Shrink some overflowing builds. #5617. Thanks @tannewt.
• Enable -Werror=missing-prototypes on more builds. #5582, #5580. Thanks @jepler.
• Remove FAT32 mkfs on boards that don't need it; re-enable rainbowio on some boards. #5578. Thanks @jepler.
• Enable bitmaptools on unix coverage build. #5575. Thanks @jepler.

Translation additions and improvements

• Initiate new Russian translation. Thanks @urfdvw.
• Enable Russian translation builds. #5592, #5589. Thanks @tannewt and @dhalbert.
• Thanks for translations:
  • @bergdahl (Swedish)
  • @labrusca (Chinese - Pinyin)
  • @Lisapple (French)
  • @Pixel-Clay (Russian)
  • @urfdvw (Chinese - Pinyin)
  • @wtuemura (Portuguese - Brazil)

Known issues

• The broadcom port for the Raspberry Pi Zero 2 W will sometimes hang when accessing the CIRCUITPY drive. #5628.
• See https://github.com/adafruit/circuitpython/issues for other issues, including issues still to be addressed for 7.x.x.

Thanks

Thank you to all who used, tested, and contributed since 7.0.0, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.

CircuitPython 7.1.0 Beta 0

This is CircuitPython 7.1.0-beta.0, the initial beta release for CircuitPython 7.1.0. It is relatively stable, but contains issues we may still address for 7.1.0.

Notable additions to 7.1.0 since 7.0.0

• keypad.Events now include timestamps.
• The Espressif port now provides I2CPeripheral, WiFi monitor mode, ESP32-C3 support, ParallelImageCapture.
• bitmaptools: dithering and alphablend are new.
• Preliminary support for asyncio is included. Use the CircuitPython asyncio library.
• gifio.GifWriter is new.
• HID now provides boot device and feature report support.
• rotaryio now allows setting the divisor of counts per transition.
• The SAMD port now provides watchdog, and alarm with sleep.
• The STM port now provides STM32L4R5 support.
• MicroPython 1.17 has been merged in.

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).

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, atmel-samd, cxd56 (Spresense), esp32s2, nrf,raspberrypi, stm for the F4 family are stable. stm for other STM chip families is 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 7.0.0

The full commit log is here.

Fixes and enhancements

• Add preliminary support for asyncio. #5564. Thanks @dhalbert.
• Fix and refactor traceback handling. #5562. Thanks @microdev1.
• bitmaptools: add dithering support. #5558. Thanks @jepler.
• Improve not writing boot_out.txt when it does not change. #5557, #5536. Thanks @jepler.
• bitmaptools: add alphablend. #5544. Thanks @jepler.
• Fix BLE workflow directory listing. #5524. Thanks @tannewt.
• sdcardio: use CMD25 to improve write speed. #5510. Thanks @jepler.
• PulseIn: fix possible memory corruption. #5509. Thanks @DavePutz.
• _bleio: fix start_advertising() argument validation. #5508. Thanks @dhalbert.
• Fix flash support to use additional values from the NVM toml data. #5506. Thanks @maholli.
• Update help() message to point to circuitpython.org. #5494. Thanks @kattni.
• Add gifio.GifWriter. #5490. Thanks @jepler.
• keypad.Event: fix hash(). #5486. Thanks @dhalbert.
• usb_hid: add boot device support and feature report support. #5481. Thanks @dhalbert.
• rotaryio: allow setting count divisor. #5468. Thanks @jepler.
• Merge MicroPython 1.17. #5466. Thanks @jepler.
• Use mp_arg_validate_type() for keyword args. #5452. Thanks @microdev1.
• displayio: fix argument validation for FourWire and I2CDisplay. #5450. Thanks @FoamyGuy.
• _stage: add support for viewport scrolling. #5447. Thanks @pewpew-game.
• Fix keyword argument handling in several native modules. #5439. Thanks @dhalbert.
• usb_hid: allow report-id-less HID descriptors. #5392. Thanks @dhalbert.
• adafruit_bus_device: allow CS active-high. #5383. Thanks @michthom.
• displayio.Display.fill_row now takes any WriteableBuffer. #5373. Thanks @lesamouraipourpre.
• bitmaptools.__init(): update error message. #5369. Thanks @lesamouraipourpre.
• Avoid overflow when scaling ticks in mp_hal_delay_ms(). #5364. Thanks @osresearch.
• keypad: add Event timestamps. #5360. Thanks @jepler.
• Fix importing of paralleldisplay. #5358. Thanks @jepler.

Port and board-specific changes

Espressif

• Add ParallelImageCapture. #5540, #5457. Thanks @jepler.
• Add WiFi monitor mode to capture all packets. #5537. Thanks @microdev1 and @anecdata.
• Add initial ESP32-C3 support. #5394. Thanks @tannewt.
• Fix serial REPL over UART. #5388. Thanks @microdev1.
• Use I2S peripheral for parallel LCD displays. #5378. Thanks @jepler.
• Update port to allow supporting more Espressif chips. #5367. Thanks @microdev1.
• Support for I2CPeripheral. #3768. Thanks @microdev1.

i.MX

• Correct return value of UART.read(). #5541. Thanks @DavePutz.

nRF

• Correct board name for nRF52833 DK. #5441. Thanks @jpconstantineau.

SAMx

• Fix watchdog time conversion. #5549. Thanks @jepler.
• Fix SAMD21 PDMIn hang. #5458. Thanks @dhalbert.
• SAMD51: Implement watchdog. #5483. Thanks @jepler.
• Allow PA24 and PA25 pins to be used for other purposes if USB is turned off. #5427. Thanks @EmergReanimator.
• Implementation of alarm, including deep sleep. #5425. Thanks @maholli.

STM

• Improve accuracy of microcontroller.delay_us(). #5553. Thanks @EmergReanimator.
• Add STM32L4R5 support. #5403. Thanks @blues.

Individual boards

• Adafruit Trinket QT2040: fix USB PID. #5550. Thanks @ladyada.
• Challenger RP2040 WiFi: fix pin definitions. #5390. Thanks @pontus0.
• Cytron Maker Pi RP2040: correct pin definitions. #5533. Thanks @CytronTechnologies.
• Lolin S2 Mini: add board.I2C(). #5467. Thanks @evildave666.
• MicroDev microS2: minor updates. #5421. Thanks @microdev1.
• Pimoroni PicoSystem: freeze the stage library. #5437. Thanks @pewpew-game.
• Pimoroni PicoSystem: add displayio. #5398. Thanks @Gadgetoid.
• PyCubed: update for mainboardv05. #5302. Thanks @maholli.
• Sensebox MCU: add rainbowio. #5534. Thanks @jepler.

New boards Since 7.0.0

• Adafruit Feather ESP32S2. #5517. Thanks @ladyada.
• Adafruit Feather ESP32-S2 TFT. #5570. Thanks @ladyada.
• Adafruit KB2040. #5550. Thanks @ladyada.
• AIThinker ESP32-C3S_Kit. #5409. Thanks @skieast.
• Challenger NB RP204. #5395. Thanks @pontus0.
• Lolin/Wemos S2-Pico. #5464. Thanks @skieast.
• Melopero Shake RP2040. #5465, #5372. Thanks @melopero.
• MicroDev microC3. #5404. Thanks @microdev1.
• Oak Development Technologies Bread 2040. #5368. Thanks @skerr92.
• PyKey60 #5507, #5497, #5365. Thanks @jpconstantineau.
• Seed XIAO variant build for HID devices. #5442. Thanks @jpconstantineau.
• Solder Party RP2040 Stamp. #5504. Thanks @solderparty.
• Swan R5. #5403. Thanks @blues.

Documentation

• Update Troubleshooting. #5539, #5528. Thanks @kattni.
• Update native module examples using the on-board LED; update PWM example. #5523. Thanks @kattni.
• Update SocketPool. #5508. Thanks @dhalbert.
• Update how to build documentation. #5472. Thanks @fraziern.
• Add precision information to time.monotonic(). #5443. Thanks @dhalbert.
• Add ESP32-C3. #5417. Thanks @microdev1.
• Document board.board_id. #5416 Thanks @Neradoc.
• Improve usb_hid.Device. #5379. Thanks @dhalbert.
• Correct 'I2C.writeto()`. #5363. Thanks @Neradoc.

Build and infrastructure changes

• Enable -Werror=missing-prototypes on various ports. #5563, #5561. Thanks @jepler.
• Use Python 3.9 for readthedocs. #5545. Thanks @jepler.
• Handle deleted boards during a build. #5518. Thanks @jepler.
• Allow any character except / in port or board names. #5473. Thanks @jepler.
• Upload patch to artifacts if pre-commit fails. #5434. Thanks @microdev1.
• Convert all modules to use MP_REGISTER_MODULE. #5430. Thanks @microdev1.
• Fixed code comments re SAMD21/SAMD51 DAC clock speeds. #5429. Thanks @process1183.
• Upload stubs to pypi for release versions. #5385. Thanks @FoamyGuy.
• Fix stubs upload to S3. #5376. Thanks @microdev1.
• Rebuild documentation only as necessary. #5350. Thanks @microdev1.

Translation additions and improvements

• Thanks for translations:
  • @bergdahl (Swedish)
  • @hexthat (Chinese - Pinyin)
  • @lesamouraipourpre (English - UK)
  • @rezaalmanda (Indonesian)
  • @Senuros (German)
  • @wtuemura (Portuguese - Brazil)

Known issues

• See https://github.com/adafruit/circuitpython/issues for other issues, including issues still to be addressed for 7.x.x.

Thanks

Thank you to all who used, tested, and contributed since 7.0.0, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.

CircuitPython 7.0.0

This is CircuitPython 7.0.0, the latest major revision of CircuitPython, and is a new stable release.

Notable additions to 7.0.0 since 6.3.0

• Support for the CircuitPython development workflow over BLE.
• Camera support on ESP32S2.
• qrio: QR code decoding.
• The keypad key-scanning module.
• Run-time customization of USB devices.
• Merging in of MicroPython fixes and enhancements as of MicroPython 1.16.
• _pixelbuf is now adafruit_pixelbuf.
• colorwheel() routine moved to rainbowio.
• supervisor.ticks_ms() to allow easier time-keeping.
• Simplifications to the RGB status LED codes.
• A clocking fix for a few samples of RP2040 boards.
• Rework of vectorio and some of its API. VectorShape is no longer needed for user code.
• atexit module.
• getpass module.
• traceback module.
• supervisor.get_previous_traceback().
• board.LED now consistently present on all boards that have such an LED.
• PulseOut no longer needs a PWMOut.
• Unicode filename support.
• Board ID is now in boot_out.txt and available as board.board_id.
• aesio on for full builds by default.

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).

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, atmel-samd, cxd56 (Spresense), esp32s2, nrf,raspberrypi, stm for the F4 family are stable. stm for other STM chip families is 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 7.0.0-rc.3

This release is a relabeling of 7.0.0-rc.3 and is otherwise the same as that release.

Breaking changes and deprecations since 6.x

• The RGB status LED codes have changed for clarity and to save power.
• PWMOut is now only in pwmio, and is no longer in both pulseio and pwomio.
• colorwheel() has been moved from _pixelbuf to rainbowio.
• displayio.Group no longer has a max_size parameter.
• vectorio: Rectangle, Circle, and Polygon are added directly to a Group; VectorShape is not needed.
• Using a PWMOut for PulseOut is deprecated and will be removed in 8.0.0.
• gamepad is removed: use keypad. gamepadshift is still present but will be removed in 8.0.0.
• settings.py and settings.txt are no longer alternative names for boot.py.
• The default for displayio.Display.refresh(..., minimimum_frames_per_second, ...) is now 0.
• displayio.Display() argument set_vertical_scroll argument is deprecated and will be removed in 8.0.0.
• displayio.ParallelBus is now available as parallelbus.ParallelBus and will be removed from displayio in 8.0.0.
• busio.OneWire/bitbangio.OneWire is now available as onewireio.OneWire and will be removed from busio and bitbangio in 8.0.0.

New boards since 6.3.0

• ARAMCON2 Badge. #4627. Thanks @aramcon-badge.
• ATMegaZero ESP32-S2. #4634. Thanks @eddieespinal.
• Adafruit LED Glasses nRF52840 Driver. #5224, #5265, #5326. Thanks @dhalbert and @ladyada.
• Adafruit MacroPad RP2040. #4770, #4864. Thanks @ladyada.
• AiThinker ESP-12K NodeMCU. #5149. Thanks @codetyphon.
• Arduino Nano RP2040 Connect. #4802. Thanks @BlitzCityDIY.
• BlueMicro840. #5114. Thanks @jpconstantineau.
• CP Sapling Rev B. #4677. Thanks @skerr92.
• Challenger RP2040 WiFi. #5323. Thanks @PontusO.
• CrumpSpace CrumpS2. #5143. Thanks @tylercrumpton.
• Cytron Maker Pi RP2040. #4824. Thanks @CytronTechnologies.
• EncoderPad RP2040. #5247 Thanks @jpconstantineau.
• Espressif HMI DevKit 1. Thanks @jepler.
• Espressif HMI Development Kit. #5335. Thanks @skieast.
• Espressif Kalgua v1.3. #4870. Thanks @jepler.
• Gravitech Cucumber M. #5097. Thanks @anecdata.
• Gravitech Cucumber MS. #5097. Thanks @anecdata.
• Gravitech Cucumber R. #5097. Thanks @anecdata.
• Gravitech Cucumber RS. #5097. Thanks @anecdata.
• Lolin Mini S2. #5239, #5297. Thanks @durapensa.
• micro:bit V2 (first BLE-only board). #5002. Thanks @tannewt.
• Morpheans MorphESP-240. #5129. Thanks @skieast.
• Muselab nanoESP32-S2 WROVER. #4834. Thanks @reppad.
• Oak Development Technologies PixelWing ESP32-S2. #5156. Thanks @skerr92.
• Pimoroni Interstate 75. #5099. Thanks @ZodiusInfuser.
• Pimoroni PGA2040. #4865. Thanks @ZodiusInfuser.
• Pimoroni Plasma 2040. #5099. Thanks @ZodiusInfuser.
• RayTac MDBT50Q-RX nRF52840 dongle. #5095. Thanks @dhalbert.
• senseBox MCU. #4576. Thanks @felixerdy.
• SparkFun MicroMod SAMD51. #4852. Thanks @stonehippo.
• SparkFun MicroMod STM32. #5060. Thanks @cdwilson.
• UnexpectedMaker Feather S2 Neo. #5294. Thanks @UnexpectedMaker.
• WarmBit BluePixel nRF52840. #5229 Thanks @warmbit.

Known issues

• We are not aware of any show-stopper issues.
• See https://github.com/adafruit/circuitpython/issues for other issues.

Thanks

Thank you to all who used, tested, and contributed since 6.3.0. See the 7.0.0 alpha, beta and RC releases for all who contributed. Join us on the Discord chat to collaborate.

This release is based on MicroPython 1.16. Support upstream MicroPython by purchasing a PyBoard (from Adafruit here) or sponsoring MicroPython on GitHub.

CircuitPython 7.0.0 Release Candidate 3

This is CircuitPython 7.0.0-rc.3, a release candidate for CircuitPython 7.0.0 final. We have addressed all the issues we scheduled for the 7.0.0 release. This release fixes an RP2040 regression introduced in 7.0.0-rc.2. We believe this release is stable, but want to give time for further testing.

Notable additions to 7.0.0 since 6.3.0 include:

• Support for the CircuitPython development workflow over BLE.
• Camera support on ESP32S2.
• qrio: QR code decoding.
• The keypad key-scanning module.
• Run-time customization of USB devices.
• Merging in of MicroPython fixes and enhancements as of MicroPython 1.16.
• _pixelbuf is now adafruit_pixelbuf.
• colorwheel() routine moved to rainbowio.
• supervisor.ticks_ms() to allow easier time-keeping.
• Simplifications to the RGB status LED codes.
• A clocking fix for a few samples of RP2040 boards.
• Rework of vectorio and some of its API. VectorShape is no longer needed for user code.
• atexit module.
• getpass module.
• traceback module.
• supervisor.get_previous_traceback().
• board.LED now consistently present on all boards that have such an LED.
• PulseOut no longer needs a PWMOut.
• Unicode filename support.
• Board ID is now in boot_out.txt and available as board.board_id.
• aesio on for full builds by default.

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).

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, atmel-samd, cxd56 (Spresense), esp32s2, nrf,raspberrypi, stm for the F4 family are stable. stm for other STM chip families is 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 7.0.0-rc.2

The full commit log is here.

Fixes and enhancements

Port and board-specific changes

nRF

RP2040

• Disable use of WFI when idling. Fixes regression introduced by #5341. #5357. Thanks @dhalbert and @Neradoc.

ESP32-S2

Spresense

STM32

Individual Boards

New boards Since 6.3.0

• ARAMCON2 Badge. #4627. Thanks @aramcon-badge.
• ATMegaZero ESP32-S2. #4634. Thanks @eddieespinal.
• Adafruit LED Glasses nRF52840 Driver. #5224, #5265, #5326. Thanks @dhalbert and @ladyada.
• Adafruit MacroPad RP2040. #4770, #4864. Thanks @ladyada.
• AiThinker ESP-12K NodeMCU. #5149. Thanks @codetyphon.
• Arduino Nano RP2040 Connect. #4802. Thanks @BlitzCityDIY.
• BlueMicro840. #5114. Thanks @jpconstantineau.
• CP Sapling Rev B. #4677. Thanks @skerr92.
• Challenger RP2040 WiFi. #5323. Thanks @PontusO.
• CrumpSpace CrumpS2. #5143. Thanks @tylercrumpton.
• Cytron Maker Pi RP2040. #4824. Thanks @CytronTechnologies.
• EncoderPad RP2040. #5247 Thanks @jpconstantineau.
• Espressif HMI DevKit 1. Thanks @jepler.
• Espressif HMI Development Kit. #5335. Thanks @skieast.
• Espressif Kalgua v1.3. #4870. Thanks @jepler.
• Gravitech Cucumber M. #5097. Thanks @anecdata.
• Gravitech Cucumber MS. #5097. Thanks @anecdata.
• Gravitech Cucumber R. #5097. Thanks @anecdata.
• Gravitech Cucumber RS. #5097. Thanks @anecdata.
• Lolin Mini S2. #5239, #5297. Thanks @durapensa.
• micro:bit V2 (first BLE-only board). #5002. Thanks @tannewt.
• Morpheans MorphESP-240. #5129. Thanks @skieast.
• Muselab nanoESP32-S2 WROVER. #4834. Thanks @reppad.
• Oak Development Technologies PixelWing ESP32-S2. #5156. Thanks @skerr92.
• Pimoroni Interstate 75. #5099. Thanks @ZodiusInfuser.
• Pimoroni PGA2040. #4865. Thanks @ZodiusInfuser.
• Pimoroni Plasma 2040. #5099. Thanks @ZodiusInfuser.
• RayTac MDBT50Q-RX nRF52840 dongle. #5095. Thanks @dhalbert.
• senseBox MCU. #4576. Thanks @felixerdy.
• SparkFun MicroMod SAMD51. #4852. Thanks @stonehippo.
• SparkFun MicroMod STM32. #5060. Thanks @cdwilson.
• UnexpectedMaker Feather S2 Neo. #5294. Thanks @UnexpectedMaker.
• WarmBit BluePixel nRF52840. #5229 Thanks @warmbit.

Documentation

Build and infrastructure changes

Translation additions and improvements

Breaking changes and deprecations since 6.x

• The RGB status LED codes have changed for clarity and to save power.
• PWMOut is now only in pwmio, and is no longer in both pulseio and pwomio.
• colorwheel() has been moved from _pixelbuf to rainbowio.
• displayio.Group no longer has a max_size parameter.
• vectorio: Rectangle, Circle, and Polygon are added directly to a Group; VectorShape is not needed.
• Using a PWMOut for PulseOut is deprecated and will be removed in 8.0.0.
• gamepad is removed: use keypad. gamepadshift is still present but will be removed in 8.0.0.
• settings.py and settings.txt are no longer alternative names for boot.py.
• The default for displayio.Display.refresh(..., minimimum_frames_per_second, ...) is now 0.
• displayio.Display() argument set_vertical_scroll argument is deprecated and will be removed in 8.0.0.
• displayio.ParallelBus is now available as parallelbus.ParallelBus and will be removed from displayio in 8.0.0.
• busio.OneWire/bitbangio.OneWire is now available as onewireio.OneWire and will be removed from busio and bitbangio in 8.0.0.

Known issues

• See https://github.com/adafruit/circuitpython/issues for other issues.

Thanks

Thank you to all who used, tested, and contributed since 6.3.0, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.

This release is based on MicroPython 1.16. Support upstream MicroPython by purchasing a PyBoard (from Adafruit here) or sponsoring MicroPython on GitHub.

CircuitPython 7.0.0 Release Candidate 2

This is CircuitPython 7.0.0-rc.2, the third release candidate for CircuitPython 7.0.0. We have addressed all the issues we scheduled for the 7.0.0 release. We believe this release is stable, but want to give time for further testing.

RP2040 PROBLEM NOTED AFTER RELEASE: RP2040 boards will not restart properly after a power cycle with 7.0.0-rc.2. You can press reset and the board will restart, but stick with 7.0.0-rc.1 for RP2040 now and we will publish a fix soon. Issue is being tracked at #5354.

Notable additions to 7.0.0 since 6.3.0 include:

• Support for the CircuitPython development workflow over BLE.
• Camera support on ESP32S2.
• qrio: QR code decoding.
• The keypad key-scanning module.
• Run-time customization of USB devices.
• Merging in of MicroPython fixes and enhancements as of MicroPython 1.16.
• _pixelbuf is now adafruit_pixelbuf.
• colorwheel() routine moved to rainbowio.
• supervisor.ticks_ms() to allow easier time-keeping.
• Simplifications to the RGB status LED codes.
• A clocking fix for a few samples of RP2040 boards.
• Rework of vectorio and some of its API. VectorShape is no longer needed for user code.
• atexit module.
• getpass module.
• traceback module.
• supervisor.get_previous_traceback().
• board.LED now consistently present on all boards that have such an LED.
• PulseOut no longer needs a PWMOut.
• Unicode filename support.
• Board ID is now in boot_out.txt and available as board.board_id.
• aesio on for full builds by default.

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 implementations for different microcontroller families. Stability varies on a per-port basis. As of this release, atmel-samd, cxd56 (Spresense), esp32s2, nrf,raspberrypi, stm for the F4 family are stable. stm for other STM chip families is 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 7.0.0-rc.1

The full commit log is here. A few changes before 7.0.0-rc.1 are included as well.

Fixes and enhancements

• Correct sdioio name. #5345. Thanks @dhalbert.
• Enhance BLE file service. #5340. Thanks @tannewt.
• Fix 24-bit decoding in bitmaptools.readinto(). #5338. Thanks @lesamouraipourpre.
• Update TinyUSB to pass compliance test suite. #5337, #5286, #5268. Thanks @hathach and @tannewt.
• Fix use of allocations for get_previous_traceback(). #5333. Thanks @microdev1.
• Consistently validate VectorShape location properties. #5327. Thanks @lesamouraipourpre.
• BLE: do not scan and advertise simultaneously. #5321. Thanks @tannewt.
• Update frozen libraries. #5314, #5288. Thanks @dhalbert and @UnexpectedMaker.
• Do not use translated messages for REPL messages read by editors. #5308. Thanks @microdev1.
• Add board.board_id and board.__name__. #5299. Thanks @Neradoc.
• aesio is now available on more builds. #5293. Thanks @microdev1.
• BLE workflow fix. #5284. Thanks @tannewt.
• Move paralleldisplay to its own module. #5260. Thanks @jepler.

Port and board-specific changes

nRF

• Correct I2SOut pin checking. #5326. Thanks @dhalbert.
• Fix builds for use with gcc 11.2. (We still use gcc 10.2.1 for production.) #5319. Thanks @tannewt.
• Fix watchdog crashes. #5272. Thanks @tannewt.

RP2040

• Enable use of WFI when idling. #5341. Thanks @tannewt and @urish.
• Implement microcontroller.Processor.reset_reason. #5320. Thanks @rjp5th.
• Fix I2SOut audio. #5310. Thanks @dhalbert.

ESP32-S2

• Improved fix for heap metadata fix #5245. #5348. Thanks @tannewt and @anecdata.

Spresense

• Update SDK to 2.3.0. #5336. Thanks @kamtom480.
• Update TinyUSB to fix USB MSC issue. #5303. Thanks @kamtom480.

STM32

Individual Boards

• LilyGo T8 S2 ST7789: Add pins. #5279. Thanks @microdev1.
• Nordic PCA10100: shrink flash size. #5339. Thanks @tannewt.
• UnexpectedMaker TinyS2: add _stage. #5289. Thanks @UnexpectedMaker.

New boards Since 6.3.0

• ARAMCON2 Badge. #4627. Thanks @aramcon-badge.
• ATMegaZero ESP32-S2. #4634. Thanks @eddieespinal.
• Adafruit LED Glasses nRF52840 Driver. #5224, #5265, #5326. Thanks @dhalbert and @ladyada.
• Adafruit MacroPad RP2040. #4770, #4864. Thanks @ladyada.
• AiThinker ESP-12K NodeMCU. #5149. Thanks @codetyphon.
• Arduino Nano RP2040 Connect. #4802. Thanks @BlitzCityDIY.
• BlueMicro840. #5114. Thanks @jpconstantineau.
• CP Sapling Rev B. #4677. Thanks @skerr92.
• Challenger RP2040 WiFi. #5323. Thanks @PontusO.
• CrumpSpace CrumpS2. #5143. Thanks @tylercrumpton.
• Cytron Maker Pi RP2040. #4824. Thanks @CytronTechnologies.
• EncoderPad RP2040. #5247 Thanks @jpconstantineau.
• Espressif HMI DevKit 1. Thanks @jepler.
• Espressif HMI Development Kit. #5335. Thanks @skieast.
• Espressif Kalgua v1.3. #4870. Thanks @jepler.
• Gravitech Cucumber M. #5097. Thanks @anecdata.
• Gravitech Cucumber MS. #5097. Thanks @anecdata.
• Gravitech Cucumber R. #5097. Thanks @anecdata.
• Gravitech Cucumber RS. #5097. Thanks @anecdata.
• Lolin Mini S2. #5239, #5297. Thanks @durapensa.
• micro:bit V2 (first BLE-only board). #5002. Thanks @tannewt.
• Morpheans MorphESP-240. #5129. Thanks @skieast.
• Muselab nanoESP32-S2 WROVER. #4834. Thanks @reppad.
• Oak Development Technologies PixelWing ESP32-S2. #5156. Thanks @skerr92.
• Pimoroni Interstate 75. #5099. Thanks @ZodiusInfuser.
• Pimoroni PGA2040. #4865. Thanks @ZodiusInfuser.
• Pimoroni Plasma 2040. #5099. Thanks @ZodiusInfuser.
• RayTac MDBT50Q-RX nRF52840 dongle. #5095. Thanks @dhalbert.
• senseBox MCU. #4576. Thanks @felixerdy.
• SparkFun MicroMod SAMD51. #4852. Thanks @stonehippo.
• SparkFun MicroMod STM32. #5060. Thanks @cdwilson.
• UnexpectedMaker Feather S2 Neo. #5294. Thanks @UnexpectedMaker.
• WarmBit BluePixel nRF52840. #5229 Thanks @warmbit.

Documentation

• Update documentation for vectorio. #5330. Thanks @lesamouraipourpre.
• Remove remaining reference to settings.py. #5324. Thanks @Neradoc.
• Add required Python packages to build documentation. #5322. Thanks @rdoursenaud.
• Add frozen library information for each board. #5304. Thanks @sommersoft.
• Update ColorConverter documentation. #5295. Thanks @lesamouraipourpre.
• Update Display.refresh() documentation. #5292. Thanks @lesamouraipourpre.
• Document ParallelBus.frequency. #5290. Thanks @jepler.
• Update TileGrid argument types. #5285. Thanks @FoamyGuy.

Build and infrastructure changes

• Rename esp32s2 port directory to espressif, to handle future chips. #5342. Thanks @tannewt.
• Only build boards or ports that have changed. #5312, #5238. Thanks @tannewt.
• Add test for traceback. #5296. Thanks @microdev1.
• Fix link templates. #5284. Thanks @tannewt.
• Use MP_REGISTER_MODULE for more built-in modules. #5281. Thanks @capellini.
• Add 0x prefix on %p uses in printf(). #5263. Thanks @jepler.

Translation additions and improvements

• Thanks for translations:
  • @hexthat (Chinese Pinyin)
  • @lesamouraipourpre (English UK)

Breaking changes and deprecations since 6.x

• The RGB status LED codes have changed for clarity and to save power.
• PWMOut is now only in pwmio, and is no longer in both pulseio and pwomio.
• colorwheel() has been moved from _pixelbuf to rainbowio.
• displayio.Group no longer has a max_size parameter.
• vectorio: Rectangle, Circle, and Polygon are added directly to a Group; VectorShape is not needed.
• Using a PWMOut for PulseOut is deprecated and will be removed in 8.0.0.
• gamepad is removed: use keypad. gamepadshift is still present but will be removed in 8.0.0.
• settings.py and settings.txt are no longer alternative names for boot.py.
• The default for displayio.Display.refresh(..., minimimum_frames_per_second, ...) is now 0.
• displayio.Display() argument set_vertical_scroll argument is deprecated and will be removed in 8.0.0.
• displayio.ParallelBus is now available as parallelbus.ParallelBus and will be removed from displayio in 8.0.0.
• busio.OneWire/bitbangio.OneWire is now available as onewireio.OneWire and will be removed from busio and bitbangio in 8.0.0.

Known issues

• See https://github.com/adafruit/circuitpython/issues for other issues.

Thanks

Thank you to all who used, tested, and contributed since 6.3.0, including the contributors above, 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 1.16. Support upstream Micr...