News Sources
View this email in your browser. Warning: Flashing Imagery
Welcome to the latest Python on Microcontrollers newsletter! insert 2-3 sentences from editor (what’s in overview, banter) - Anne Barela, Editor
We’re on Discord, Twitter/X, BlueSky and for past newsletters - view them all here. If you’re reading this on the web, please subscribe here. Here’s the news this week:
CircuitPython 10.0.0-alpha.7 Released
CircuitPython 10.0.0-alpha.7 is now out. It’s an alpha release for 10.0.0. Further features, changes, and bug fixes will be added before the final release of 10.0.0. - Adafruit Blog and Release Notes - GitHub.
Highlights
- Update frozen modules
- Merge MicroPython v1.24.1
- Espressif:
- Expand firmware partition on non-USB boards
- Fix
pulseio.PulseIn length limitation
- Initial impl of MicroROS
- Nordic: reinit BLE properly after deep sleep
- Fixes from CPy 9.2.8 and later
Feature
text - site.
Feature
text - site.
CircuitPython School
Have you been looking for an easy way to learn CircuitPython? Check out the videos by Professor John Gallaugher of Boston College. His CircuitPython School videos are especially helpful - YouTube Playlist.
Arduino Stella Ultra-WideBand Board
Arduino has now launched its Stella ultra-wideband (UWB) board and Portenta UWB Shield add-on, after unveiling them both at Embedded World earlier this year.
The Arduino Stella, powered by the Truesense DCU040 and an on-board Nordic Semiconductor nRF52840 microcontroller, has been launched at $75.90; the Portenta UWB Shield, which allows an Arduino Portenta C33 to link to the Stella and other UWB devices as either another client or a base station, is priced at $60 excluding the Portenta C33 - hackster.io.
Python Remains #1 in the Latest TIOBE Poll
Python remains the number one language at tin the TIOBE index of of computer languages. Python currently has a 25.87 percent rating, up 10.48 percent on the year - DevClass.
This Week’s Python Streams
Python on Hardware is all about building a cooperative ecosphere which allows contributions to be valued and to grow knowledge. Below are the streams within the last week focusing on the community.
CircuitPython Deep Dive Stream
Last Friday, Tim streamed work on {subject}.
You can see the latest video and past videos on the Adafruit YouTube channel under the Deep Dive playlist - YouTube.
CircuitPython Parsec
John Park’s CircuitPython Parsec this week is on {subject} - Adafruit Blog and YouTube.
Catch all the episodes in the YouTube playlist.
CircuitPython Weekly Meeting
CircuitPython Weekly Meeting for June 16, 2025 (notes) on YouTube.
Project of the Week: IINTS, the Open-Source Insulin Pump for Raspberry Pi Pico
Teenager Rune Bobbaers designed and built a fully open-source insulin pump from scratch having long “been fascinated by the medical technology that helps keep me alive, especially insulin pumps”. It uses MicroPython on a Raspberry Pi Pico, controling insulin delivery using stepper motors and a user-friendly interface - Raspberry Pi News and GitHub.
Popular Last Week
What was the most popular, most clicked link, in last week’s newsletter? How to Write Code the Pythonic Way (With 6 Examples).
Did you know you can read past issues of this newsletter in the Adafruit Daily Archive? Check it out.
New Notes from Adafruit Playground
Adafruit Playground is a new place for the community to post their projects and other making tips/tricks/techniques. Ad-free, it’s an easy way to publish your work in a safe space for free.
Hypotrochoid Spiral Maker - Adafruit Playground.
text - Adafruit Playground.
text - Adafruit Playground.
News From Around the Web
A brief history of the Zephyr real-time operating system (RTOS) - Shawn Hymel.
Simon Prickett posts about his flip dot bus display, driven by a Raspberry Pi 3 and a Pi Pico W to display aircraft data using Python and JavaScript - X and GitHub.
ZPUI (Zippy UI) is a small-screen Linux control interface and UI framework. It gives you access to your system at your fingertips, untethered from any SSH or keyboard/display/mouse requirements. With ZPUI, you can see your IP address, connect to wireless networks (even do password input with arrow keys in a pinch!), run scripts, manage system services, reboot and power down your system, view and unmount storage partitions, control media volume, and do much more.
ZPUI is perfect for single-board computers, servers, embedded Linux devices, your broken-screen laptop on a shelf, wearable and pocket-able devices with Linux under the hood, and much more. OpenWRT support incoming, too. It is written in Python and it supports third-party apps - Hackaday, GitHub and ReadTheDocs.
Yakroo108 has made a 3D mini house using PCBs! It is built on a Raspberry Pi Pico & CircuitPython. It glows with Cyberpunk flair neon lights, metallic vibes & a dystopian twist - X.
Why did CircuitPython change their secrets.py to secrets.toml? Learn about how Python and TOML are getting along - Real Python.
text - site.
text - site.
text - site.
text - site.
text - site.
text - site.
text - site.
text - site.
text - site.
text - site.
text - site.
Immutability in Python - Real Python.
New
Espressif Systems ESP32-C61 low-cost WiFi 6 and BLE SoC has now entered mass production - CNX Software.
The LILYGO T-Embed SI4732 is an ESP32-S3 development board with an AM/FM radio, a TFT display, a rotary encoder, a built-in microphone, and a microSD card slot powered through a USB-C port or LiPo battery - CNX Software.
New Boards Supported by CircuitPython
The number of supported microcontrollers and Single Board Computers (SBC) grows every week. This section outlines which boards have been included in CircuitPython or added to CircuitPython.org.
This week there were (#/no) new boards added:
Note: For non-Adafruit boards, please use the support forums of the board manufacturer for assistance, as Adafruit does not have the hardware to assist in troubleshooting.
Looking to add a new board to CircuitPython? It’s highly encouraged! Adafruit has four guides to help you do so:
New Learn Guides
The Adafruit Learning System has over 3,000 free guides for learning skills and building projects including using Python.
Not A Typewriter from Ruiz Brothers and Liz Clark
title from name
title from name
CircuitPython Libraries
The CircuitPython library numbers are continually increasing, while existing ones continue to be updated. Here we provide library numbers and updates!
To get the latest Adafruit libraries, download the Adafruit CircuitPython Library Bundle. To get the latest community contributed libraries, download the CircuitPython Community Bundle.
If you’d like to contribute to the CircuitPython project on the Python side of things, the libraries are a great place to start. Check out the CircuitPython.org Contributing page. If you’re interested in reviewing, check out Open Pull Requests. If you’d like to contribute code or documentation, check out Open Issues. We have a guide on contributing to CircuitPython with Git and GitHub, and you can find us in the #help-with-circuitpython and #circuitpython-dev channels on the Adafruit Discord.
You can check out this list of all the Adafruit CircuitPython libraries and drivers available.
The current number of CircuitPython libraries is ###!
New Libraries
Here are this week’s new CircuitPython libraries:
Updated Libraries
Here are this week’s updated CircuitPython libraries:
What’s the CircuitPython team up to this week?
What is the team up to this week? Let’s check in:
Dan
text.
Tim
text.
Scott
text.
Liz
text.
Upcoming Events
The next MicroPython Meetup in Melbourne will be on June 25th – Meetup. You can see recordings of previous meetings on YouTube.
PyOhio 2025 will be held Saturday & Sunday July 26 & 27, 2025 at the Cleveland State University Student Center in Cleveland, Ohio - PyOhio 2025.
KiCad conferences (KiCon) to be held this year include 19 - 20 Sept 2024 in Bochum, Germany, and to be determined in Asia - KiCad.
PyCon UK will be at CONTACT in Manchester from Friday 19th September to Monday 22nd September 2025 - PyCon UK 2025.
Maker Faire Bay Area 2025 will be Sep 26 – 28, 2025 in Vallejo, California, US - Maker Faire.
Send Your Events In
If you know of virtual events or upcoming events, please let us know via email to cpnews(at)adafruit(dot)com.
Latest Releases
CircuitPython’s stable release is #.#.# and its unstable release is #.#.#-##.#. New to CircuitPython? Start with our Welcome to CircuitPython Guide.
2025#### is the latest Adafruit CircuitPython library bundle.
2025#### is the latest CircuitPython Community library bundle.
v#.#.# is the latest MicroPython release. Documentation for it is here.
#.#.# is the latest Python release. The latest pre-release version is #.#.#.
#,### Stars Like CircuitPython? Star it on GitHub!
Call for Help – Translating CircuitPython is now easier than ever
One important feature of CircuitPython is translated control and error messages. With the help of fellow open source project Weblate, we’re making it even easier to add or improve translations.
Sign in with an existing account such as GitHub, Google or Facebook and start contributing through a simple web interface. No forks or pull requests needed! As always, if you run into trouble join us on Discord, we’re here to help.
NUMBER Thanks
The Adafruit Discord community, where we do all our CircuitPython development in the open, reached over NUMBER humans - thank you! Adafruit believes Discord offers a unique way for Python on hardware folks to connect. Join today at https://adafru.it/discord.
ICYMI - In case you missed it
Python on hardware is the Adafruit Python video-newsletter-podcast! The news comes from the Python community, Discord, Adafruit communities and more and is broadcast on ASK an ENGINEER Wednesdays. The complete Python on Hardware weekly videocast playlist is here. The video podcast is on iTunes, YouTube, Instagram), and XML.
The weekly community chat on Adafruit Discord server CircuitPython channel - Audio / Podcast edition - Audio from the Discord chat space for CircuitPython, meetings are usually Mondays at 2pm ET, this is the audio version on iTunes, Pocket Casts, Spotify, and XML feed.
Contribute
The CircuitPython Weekly Newsletter is a CircuitPython community-run newsletter emailed every Monday. The complete archives are here. It highlights the latest CircuitPython related news from around the web including Python and MicroPython developments. To contribute, edit next week’s draft on GitHub and submit a pull request with the changes. You may also tag your information on Twitter with #CircuitPython.
Join the Adafruit Discord or post to the forum if you have questions.
