CircuitPython 9.2.0-beta.1
Pre-releaseThis is CircuitPython 9.2.0-beta.1, a beta release for 9.2.0. It has known bugs that wil be fixed before the final release of 9.2.0.
WARNING for nRF52 boards only: If your board has an nRF52 UF2 bootloader whose version is before 0.6.1, you will not be able to load CircuitPython 8.2.0 and later, due to increased size of the firmware. See these instructions for updating your bootloader.
Highlights of this release
- New
busio.I2C.probe()
andbitbangio.I2C.probe()
methods to check for a single device address. - Use new ESP-IDF I2C driver.
- ESP32-S3: implement
sdioio
. - Incompatible change: Change default hostname for all Espressif boards to the ESP-IDF default, which is
espressif
. Previous board-specific names were not applied consistently. Usewifi.radio.hostname
to set a custom hostname. - Incompatible change: Use default hostname for mDNS. Fix mDNS collision mangling.
Notable changes in 9.2.0 from 9.1.x
- Raspberry Pi RP2350 support.
- Update to Espressif ESP-IDF V5.3.1, including new I2C driver.
- Merge MicroPython updates from v1.22.2 and v1.23.
- Espressif BLE improvements.
- Add
math.dist()
. _eve
updates.- New
busio.I2C.probe()
andbitbangio.I2C.probe()
methods to check for a single device address. - ESP32-S3: implement
sdioio
. - Incompatible change: Change default hostname for all Espressif boards to the ESP-IDF default, which is
espressif
. - Incompatible change: Use default hostname for mDNS. Fix mDNS collision mangling.
Incompatibility warnings
- Change default hostname for all Espressif boards to the ESP-IDF default, which is
espressif
. Previous board-specific names were not applied consistently. Usewifi.radio.hostname
to set a custom hostname. - Use default hostname for mDNS. Fix mDNS collision mangling. DNS hostnames will be different.
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, these ports are consider stable (but see Known Issues below):
atmel-samd
: Microchip SAMD21, SAMx5xcxd56
: Sony Spresenseespressif
: Espressif ESP32, ESP32-S2, ESP32-S3, ESP32-C2, ESP32-C3, ESP32-C6nordic
: Nordic nRF52840, nRF52833raspberrypi
: Raspberry Pi RP2040, RP2350stm
: ST STM32F4 chip family
These ports are considered alpha and will have bugs and missing functionality:
broadcom
: Raspberry Pi boards such as RPi 4, RPi Zero 2Wespressif
: ESP32-P4 (currently no USB support)litex
: fomumimxrt10xx
: NXP i.MX RT10xxxrenode
: hardware simulatorsilabs
: Silicon Labs MG24 familystm
: ST non-STM32F4 chip families
Changes since 9.2.0-beta.0
Fixes and enhancements
- Incompatible change: Use default hostname for mDNS. Fix mDNS collision mangling. #9699. Thanks @tannewt.
- Fix
epaperdisplay
to handle delays properly whentwo_byte_sequence_length=True
. #9694. Thanks @Sola85. - Fix crash when printing
DeepSleepRequest
exception, used internally byalarm
. #9692. Thanks @jepler. - Fix internal check for connected BLE workflow, which was preventing deep sleep on some BLE boards. #9679. Thanks @dhalbert.
- New
busio.I2C.probe()
andbitbangio.I2C.probe()
methods to check for a single device address. #9671. Thanks @dhalbert. - Add slight delay in
KeyMatrix
scanning to allow time for signal setting. #9665. Thanks @SeanCline. - Update to tinyusb v0.17.0. #9664. Thanks @samblenny.
- Fix
MP3Decoder
infinite loop when file ends in a partial frame. #9653. Thanks @eric321.
Port and board-specific changes
Broadcom
Espressif
- Save space when copying default hostname. #9677. Thanks @RetiredWizard.
- Fix BLE
Characteristic
deinit checking. #9676. Thanks @dhalbert. - Switch to using new ESP-IDF I2C driver. #9671. Thanks @tannewt and @dhalbert.
- Incompatible change: Change default hostname for all Espressif boards to the ESP-IDF default, which is
espressif
. #9656. Thanks @RetiredWizard. - ESP32-S3: implement
sdioio
. #9641. Thanks @jacobcrigby and @RetiredWizard. - Remove
ESP_CONSOLE_UART
settings for ESP32-S3 666 display boards. #9583. Thanks @RetiredWizard.
i.MX
nordic
renode
RP2
- Move RP2040 divider wrapper to RAM. #9698. Thanks @tannewt.
- Fix
os.uname()
values for RP2350. #9683. Thanks @dhalbert. - Fix
rotaryio
on RP2350. #9682. Thanks @jepler. - Clear any pending interrupt flag in
rp2pio
. #9680. Thanks @jepler.
SAMx
SiLabs
Spresense
STM
Individual boards
- Adafruit Feather RP2350: Add
board.IO4
andboard.IO7
. #9668. Thanks @tannewt. - Datanoise PicoADK V2. #9696. Thanks @DatanoiseTV.
- Makerfabs TFT7: Allow specifying
CIRCUITPY_DISPLAY_WIDTH
insettings.toml
. #9654, #9634. Thanks @RetiredWizard. - Sunton ESP32 2432S028: Allow specifying
CIRCUITPY_DISPLAY_ROTATION
insettings.toml
. #9654, #9627. Thanks @RetiredWizard.
Documentation changes
- Fix
floppyio
documentation formatting. #9658. Thanks @jepler. - Correct
memorymap.AddressRange
example. #9639. Thanks @jepler.
Build and infrastructure changes
- Use
MP_PROPERTY_GETTER
, etc. everywhere. #9684. Thanks @diamant3. - Keep
PYTHONPATH
setting when running tests. #9655. Thanks @jepler.
Translation additions and improvements
- Thanks for translations:
New boards since 9.2.0-beta.0
- Espressif ESP32-S# LCD EV Board v1.5. #9608. Thanks @sanhu88.
- Makerdiary iMX RT1011 Nano Kit. #9645. Thanks @makerdiary.
- Maker Go C6 SuperMini. #9687. Thanks @bill88t.
- Sunton ESP32 8048S050 [ESP32-S3]. #9661. Thanks @sanhu88.
Known issues
- See https://github.com/adafruit/circuitpython/issues for other issues, including issues still to be addressed for:
- Native-code .mpy files are not working. This capability is currently enabled only on the
winterbloom_sol
board.
Thanks
Thank you to all who used, tested, and contributed toward this release, including the contributors above, and many others on GitHub and Discord. Join us on the Discord chat to collaborate.