CircuitPython 5.0.0 released

dcexpert

CircuitPython 5.0.0 released [Copy link]

On March 2, 2020, Adafruit announced the official release of CircuitPython 5.0.0.

5.0.0 has many improvements and enhancements, including grayscale OLED and e-paper displays, adding a lot of support and improvements for BLE, support for the STM32F4, iMX RT10xx and Sony Spresense microcontroller families, and PWM audio support.

New features and improvements since 4.1.2

• Many improvements to displayio
  • Improved refresh API
  • Grayscale OLED support
  • E-paper display support
  • Groups can be hidden
• Lots of improvements to bleio
  • Renamed bleio to _bleio to emphasize that one should use
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    and that its API may change without a major CircuitPython version bump to _bleio
  • Central support
  • Customer Support
  • Pairing and bonding support
• Audio fixes and improvements
  • MP3 decoding support
  • PWM Audio Output
  • nRF52840 I2S Support
  • The mixer has been moved to audiomixer and supports per-sound volume
• RGB pixel acceleration API for pixelbuf
• Other chip series supported:
  • STM32F4
  • iMX RT 10xx
  • CXD56 (Sony Spresense)
• Added Korean translation
• Many translation improvements

Breaking changes and deprecations from 4.x

• Improves internal file system definitions and may overwrite existing files, so make sure to back them up before updating!
• The bleio module was renamed to _bleio to represent that it is only used to write BLE libraries, and its API may change between CircuitPython minor versions. There are many incompatible changes to _bleio as of 4.0.0. Please use the latest
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  for end-user BLE programming.
• The displayio refresh API has been updated to be simpler. wait_for_frame and refresh_soon have been removed. In both 4.x and 5.x, autorefresh automatically refreshed the display, so it can be removed. The new auto_refresh property and refresh() function can be used to control when and at what specific rate the screen refreshes.
• Moved audioio.Mixer to audiomixer.Mixer , which is only available in M4. Moved audioio.RawSample , and audioio.WaveFile to the new module audiocore . However, for backward compatibility, they are still provided in audioio . They will be removed in audioio 6.0.0. Thanks @jepler.
• Added I2C.writeto_then_readfrom() . Deprecated stop= arg which will be removed in 6.x. Use I2C.writeto_then_readfrom() instead.
• re removed from the CircuitPlayground Express Display version.
• The gamepad was removed from the CircuitPlayground Express Crickit build.

51 new boards added since 4.1.2

• Adafruit Bluefruit Sense
• Adafruit Circuit Playground Bluefruit
• Adafruit Circuit Playground Express with displayio
• Adafruit Clue nRF52840 Express
• Adafruit Edge Badge
• Adafruit Feather M7 1011
• Adafruit Feather STM32F405 Express
• Adafruit Itsy Bitsy nRF52840 Express
• Adafruit Metro nRF52840 Express
• Adafruit Monster M4SK
• Adafruit PyPortal Pynt
• Adafruit PyPortal Titano
• Alethea Flowers Winterbloom Sol
• ARAMCON Badge 2019
• Arduino NANO 33 BLE
• Arduino NANO 33 IoT
• arturo182 Feather MIMXRT1011
• arturo182 Feather MIMXRT1062
• arturo182 Serpente
• Cedar Grove Studios StringCar M0 Express
• Elecrow PYB Nano v2
• Espruino Pico
• Espruino WiFi
• George Robotics Pyboard
• keithp.com Snekboard
• KittenBot Meowbit
• Null Bytes Labs CircuitBrains Basic
• Null Bytes Labs CircuitBrains Deluxe
• NXP MIMXRT1010 Eval Kit
• NXP MIMXRT1020 Eval Kit
• NXP MIMXRT1060 Eval Kit
• n°Garage Ndbit6
• Oddly Specific Objects Open Book
• OSHWA Open Hardware Summit 2020 Badge
• PJRC Teensy 4.0
• Radomir Dopieralski PewPew M4
• Robot Exploration Lab PyCubed
• Robotics Masters Robo HAT MM1 M4
• Seeed Seeeduino XIAO
• Sarfata shIRtty
• Sony Spresense
• SparkFun Qwiic Micro w/o Flash
• SparkFun Qwiic Micro w/Flash
• SparkFun SAMD51 Thing Plus
• ST STM32F407 Discovery Kit
• ST STM32F411 Discovery Kit
• ST STM32F412 Discovery Kit
• Teknikio Bluebird
• TZT STM32F411CE Black Pill
• XinaBox CC03
• XinaBox CS11

Known Issues

• Operations that read from the SD card (such as OnDiskBitmap ) will interfere with other SD card operations and may cause lockups. To fix this, do not read or write files on the SD card while the display is updating, or vice versa .
• See https://github.com/adafruit/circuitpython/issues for other issues.

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