This is a Beta Release
This is release 5.0.0 beta.4. Beta releases are largely feature-complete, but are meant for testing. Use the latest stable 4.x release when first starting with CircuitPython.
When you find a bug please check the current known issues and file an issue if something isn't already known.
5.0.0
5.0.0 is the latest major revision of CircuitPython. It features many improvements and enhancements to displayio
, including grayscale OLED and e-paper displays, extensive additions and improvements to BLE support, support for the STM32F4, iMX RT10xx and Sony Spresense microcontrollers, and PWM audio support.
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.
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).
New Features, Updates, and Fixes since 5.0.0 Beta 3
- Add BLE bonding. Thanks @dhalbert.
- Fix tuple subscripting regression. Thanks @rhooper.
- STM32: Fix I2C and clean up
busio
. Thanks @hierophect. - Make buffer handling more robust for
urandom
. Thanks to @jepler - Updates for Capable Robot USB Hub. Thanks @CapableRobot.
mimxrt1011
updates. Thanks to arturo182.- Add
Dxx
pin names to Feather M4 Express. Thanks @scs217. - Spresense: use source files instead of preocmpiled binaries for
mkspk
. Thanks @kamtom480. - Spresense: fix
board_timerhook
. Thanks @kamtom480. - Use Python 3 to run all Python scripts. Thanks @theodox.
- Fix support matrix generation. Thanks @deshipu.
- Requiring I2C pullups can now be turned off for a build. Thanks @dhalbert.
New Boards
Find downloads for all boards, including these, at https://circuitpython.org/downloads.
New since 5.0.0-beta.3
- Ohs2020 badge. Thanks @mwelling.
- Seeduino XIAO. Thanks @dalegrover
- Open Book. Thanks @joeycastillo.
- AramCon Badge 2019. Thanks @bmeisels.
Breaking Changes and Deprecations from 4.x
- 5.0.0 improves our internal filesystem definitions and may overwrite your existing files so make sure to back them up before updating!
- The
bleio
module has been renamed to_bleio
to indicate that it is meant to be used only for writing BLE libraries, and that its API may change between CircuitPython minor versions. There are many incompatible changes in_bleio
since 4.0.0. Please use the latestadafruit_ble
library for end-user BLE programming. - The
displayio
refresh API has been revamped to be simpler.wait_for_frame
andrefresh_soon
have been removed. In both 4.x and 5.x, auto refresh will automatically refresh the display so they can be removed. The newauto_refresh
property andrefresh()
function can be used to control when the screen refreshes and at a specific rate. - Moved
audioio.Mixer
toaudiomixer.Mixer
, which is only available on M4s. Movedaudioio.RawSample
, andaudioio.WaveFile
to the new moduleaudiocore
. However, for backwards compatibility, they are still available inaudioio
. They will be removed fromaudioio
in 6.0.0. Thanks @jepler. - Added
I2C.writeto_then_readfrom()
. Deprecatestop=
arg which will be removed in 6.x. UseI2C.writeto_then_readfrom()
instead. - Removed
re
from CircuitPlayground Express Display build. - Removed
gamepad
from CircuitPlayground Express Crickit build.
Known Issues
Thanks
Thank you to all who used, tested, contributed, helped out, and participated on GitHub and/or Discord,including @ATMakersBill, @anneb, @cgrover, @Dar-Scott, @DrewFustini, @KittenCanaveral, @TG-Techie, @arturo182, @bmeisels, @brentru, @caternuson, @codeNsolder, @CSchmitz, @dalegrover, @deshipu, @deshipu, @dglaude, @dhalbert, @dherrada, @FoamyGuy, @geekguy, @hathach, @hierophect, @hukuzatuna, @jepler, @Jerryn, @joeycastillo, @kamtom480, @kattni, @kevinjwalters, @ladyada, @madbodger, @maholli, @makermelissa, @mwelling, @nickzoic, @osterwood, @rhooper, @scs217, @siddacious, @tannewt, @theacodes, @theodox, @wallarug and surely more we have missed. Join us on the Discord chat to collaborate.
Documentation
Documentation is available in readthedocs.io.
Here are all the changes since 5.0.0-beta.3.
This release is based on MicroPython 1.9.4 @25ae98f. Support upstream MicroPython by purchasing a PyBoard (from Adafruit here).
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.