4.1.0’s biggest feature is speed! General execution of Python should be 2-5x faster and display refreshing will be faster as well.
This is the first and hopefully last release candidate. It shouldn’t break any code compatible with previous 4.x releases. Please use the latest 4.x stable release (available from the new website!) when first starting with CircuitPython. It is stable.
Over 60 boards are now supported by CircuitPython 4.1.0. Check out the new circuitpython.org/downloads page for full list of all available versions.
It’s not too late to contribute to CircuitPython! Check out this guide for details. We’re always looking to improve and expect many stable releases in the 4.x line to happen through the summer. Subscribe to the Python for Microcontrollers newsletter on adafruitdaily.com for the latest news for all things Python.
Downloads are now available from circuitpython.org! This site makes it much easier to select the correct file and language for your board. The downloads page is here.
Fix Bitmap so it causes screen refreshes. Thanks to @tannewt
Bitmaps track a dirty area so that TileGrids that just show a full Bitmap are minimally refreshed. This speeds up examples like paint and turtle. Thanks to @tannewt
Thank you to all who used, tested, contributed, helped out, and participated on GitHub and/or Discord:
@adafruit, @AlexHagerman, @anecdata, @ATMakersBill, @baorepo, @C47D, @deshipu, @dhalbert, @elvis-epx, @iot49, @jandjstudios, @jpecor, @jreese, @kattni, @ladyada, @madbodger, @MakerMelissa, @matt-land, @MikeBarela, @Mr. Certainly, @mrmcwethy, @ntavish, @ptorrone, @rce1086, @shazz, @siddacious, @sommersoft, @tannewt, and surely more we have missed. Join us on the Discord chat to collaborate.
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.