ICYMI Python on Microcontrollers Newsletter: CircuitPython 9.2.1, What is DMA, PyConUS 2025 and More! #CircuitPython #Python #micropython #ICYMI @Raspberry_Pi

If you missed this week’s Python on Microcontrollers Newsletter, here is the ICYMI (in case you missed it) version.

To never miss another issue, subscribe now! – You’ll get one terrific newsletter each Monday (which is out before this post). 11,644 subscribers worldwide (a 139 subscriber jump, thank you!).

The next newsletter goes out in a week and subscribing is the best way to keep up with all things Python for hardware. No spam, no selling lists, leave any time.


Welcome to the latest Python on Microcontrollers newsletter! Thanks to everyone for reading last week’s Pi-centric issue. This issue pivots back to a mix of community news with a new version of CircuitPython and work on new MicroPython versions. There is also a lot happening with standard Python at the moment, including PyCon US 2025 next year. Wishing US folks a Happy Thanksgiving this week. – Anne Barela, Editor

We’re on Discord, Twitter, and for past newsletters – view them all here. If you’re reading this on the web, subscribe here. Here’s the news this week:

CircuitPython 9.2.1 Released

CircuitPython 9.2.1 Released

CircuitPython 9.2.1 is the latest bugfix revision of CircuitPython and is a new stable release – Adafruit Blog and Release Notes.

Highlights of this release

  • Additional synthio and audiofilters functionality.
  • I2CTarget and keys.*.reset() fixes.
  • RP2350: PSRAM and cpu.temperature fixes.
  • rp2pio: add background read operation.
  • Five new boards.

Introduction to DMA

Introduction to DMA

Elecia White provides insights into how DMA works and why it’s used to make systems faster – embedded.fm.

Does Your Raspberry Pi 5 Need an NVMe Drive?

Does Your Raspberry Pi 5 Need an NVMe Drive?

The Raspberry Pi 5 has excellent features, including PCIe support, which allows you to hook up a speedy NVMe storage drive for the first time. What does this mean? NVMes are fast, so you can bring great speed and reliability to your Pi 5. If you’re tired of SD card storage limitations on your Pi 5, this article dives into when it’s worth investing in an NVMe drive – How-To Geek.

Using Python with Virtual Environments

Using Python with virtual environments

Raspberry Pi OS comes with Python 3 pre-installed. Changing the system Python installation can cause problems for the operating system. When you install third-party Python libraries, you can refer to this handy guide to use the correct package-management tools – Raspberry Pi News.

Is Python Really That Slow?

Is Python Really That Slow?

Miguel Grinberg has running some benchmarks to form a better mental image of Python’s often criticized performance – miguelgrinberg.

And the #1 CPython IDE (for big Python) is . . .

And the #1 Python IDE is . . .

What’s the best IDE for Python? Here’s how InfoWorld rates IDLE, Komodo, PyCharm, PyDev, Microsoft’s Python and Python Tools extensions for Visual Studio Code, and Spyder – InfoWorld.

5 Obscure Raspberry Pi Operating Systems That Deserve More Love

5 obscure Raspberry Pi operating systems that deserve more love

One of the biggest advantages of the Raspberry Pi boards lies in the fact that you can use inexpensive microSD cards to switch between different operating systems at will. Combine that with the massive number of Raspberry Pi distros, and you can easily convert your tiny SBC into your distro-hopping companion – XDA.

New Release: The Official Raspberry Pi Camera Guide, 2nd Edition

NEW BOOK! The Official Raspberry Pi Camera Guide 2nd Edition

Add the power of HDR photography, Full HD video, and AI image recognition to your Raspberry Pi projects with Camera Modules.

This book is your step-by-step guide to adding a Camera Module to your Raspberry Pi board. You’ll master still images, capture video clips as digital files, and control the camera with shell commands and Python code – Raspberry Pi Press.

This Week’s Python Streams

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

Deep Dive

Last Friday, Tim streamed work on refactoring GitHub API requests in Adabot.

The Friday before, Tim streamed on Refactor & Cleanup TextBox.

You can see the latest video and past videos on the Adafruit YouTube channel under the Deep Dive playlist – YouTube.

CircuitPython Parsec

CircuitPython Parsec

John Park’s CircuitPython Parsec this week is on Touchscreen Triangles – Adafruit Blog and YouTube.

Catch all the episodes in the YouTube playlist.

CircuitPython Weekly Meeting

CircuitPython Weekly Meeting for November 18th (notes) on YouTube.

Project of the Week – A TVA TemPad Prop Build

TVA TemPad Prop Build

Matt Gray makes a Marvel TVA TemPad prop from Loki using an RP2040 board and Adafruit display, programmed in CircuitPython – Adafruit Blog and The MagPi.

Popular Last Week

What was the most popular, most clicked link, in last week’s newsletter? Raspberry Pi CM5 spotted in the wild at electronica24.

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.

Wii Nunchuck USB Adapter

Wii Nunchuck USB Adapter – Adafruit Playground.

Do You Want to Make a Starship?

Do You Want to Make a Starship? – Adafruit Playground.

News From Around the Web

PyCon US 2025

PyCon US 2025 is being held from May 14 – May 22, 2025 this year. The organizers are seeking proposals for talks and more. There are some new rules on proposal submission this year – Proposals.

Python 3.14.0 alpha 2 released

Python 3.14.0 alpha 2 released – Python Insider Blog.

Pibo the bipedal robot review

Pibo: the bipedal robot based on Raspberry Pi and programmable in Python & more – The MagPi.

release-1.25.0

Work on MicroPython v1.24.1 and v1.25.0 is in progress – GitHub.

Bjorn

Bjorn is a Raspberry Pi-powered Tamagotchi-like network pen-testing tool using Raspberry Pi Zero W and Python – GitHub. Via Tom’s Hardware.

LLMs accelerated with eGPU on a Raspberry Pi 5

LLMs accelerated with eGPU on a Raspberry Pi 5 – Jeff Geerling.

Threading in Python: How to Get The Return Value From a Thread

Threading in Python: how to get the return value from a thread – Medium.

Use a transparent OLED display with Raspberry Pi

Use a transparent OLED display with Raspberry Pi and Python – Sozorablog (Japanese). Via X.

5 Raspberry Pi projects you can wear

5 Raspberry Pi projects you can wear – XDA.

Barcode beast

Barcode beast for music scans Compact Disk barcodes using a Raspberry Pi and Python – Rev Space blog.

Prototype My Neckwatch

A neckwatch using MicroPython – YouTube, hackster.io, and hackaday.io. Via X.

Tiny Tapeout - RISC-V - MicroPython

Mike Bell is looking to get MicroPython running on a Tiny Tapeout RISC-V processor – Mastodon and GitHub.

AQI monitor pm2.5 v 2.0 (PICO W) Webserver & CIRCUITPYTHON

An AQI monitor PM2.5 v2.0 with a webserver using an RP2040 and CircuitPython – YouTube.

Raspberry Pi Pico 2: RP2350, MicroPython and RISC-V

Raspberry Pi Pico 2: RP2350, MicroPython and RISC-V – jhalfmoon (Japanese).

Automated Fault Detection System for Production Lines Using Raspberry Pi and Machine Learning

Building an automated fault detection system for production lines using Raspberry Pi, Python and machine learning – Instructables.

Thomas E. Kurtz, a Creator of BASIC Computer Language, Dies at 96

Thomas E. Kurtz, a creator of BASIC computer language, dies at 96 – New York Times.

PyBonsai: Generate procedural ASCII art trees in the terminal

PyBonsai: generate procedural ASCII art trees in the terminal – GitHub. Via X.

Can You Tell Free Python Art from Multi-Million Dollar Pieces?

Can you tell free Python art from multi-million dollar pieces? – Towards Data Science.

How I Turned My Raspberry Pi Into a Private Internet Archive

How I turned my Raspberry Pi into a private Internet Archive – meketecheasier.

New

LG Display’s stretchable screen is now even stretchier

LG Display’s stretchable screen is now even stretchier. The latest prototype of the company’s resilient screen can stretch from 12 to 18 inches, perfect for wearables – The Verge.

According to LG Display, it “can be repeatedly stretched over 10,000 times, maintaining clear image quality even in extreme environments such as exposure to low or high temperatures and external shocks.”

This tiny Banana Pi board is like a RISC-V powered Raspberry Pi Zero

The Banana Pi BPI-CanMV-K230D-Zero is like a RISC-V powered Raspberry Pi Zero – Liliputing.

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 was one new board 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:

CircuitPython Libraries

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 506!

Updated Libraries

Here’s 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

I released CircuitPython 9.2.1 which has bug fixes, some new audio features, and adds several new boards.

I’m continuing to work on cryptography to get CircuitMatter to run on CircuitPython.

Tim

I am continuing to work on issues across the CircuitPython libraries and resolved a handful more this week. One that I’m particularly stoked about is a new FilledPolygon for the Display_Shapes, as well as support for setting the outline stroke size for both it and the pre-existing Polygon classes.

I also added some logic to the circuitpython.org search function to give higher precedent to devices with tags that match search terms exactly. This resolves an issue that caused the Pico 2 device to be somewhat far down the page if you searched “Pico 2”. Today I’ve started on a new project to fetch posts from Bluesky and show them on a display.

Jeff

This past week, I added a board definition for the upcoming Raspberry Pi Pico 2 W with the RP2350 MCU and a WiFi coprocessor.

Liz

This week I worked on documenting the Feather RP2350 Video Synth. This project runs CircuitPython code that takes audio input with a PDM mic for FFT that affect the three animations that are output via HSTX to DVI from the Feather. Initially I was hoping to use the quad seesaw rotary encoder board for controlling the animations, but they were not as responsive as I wanted them to be. Instead, I brought in three analog potentiometers for control and a single seesaw rotary encoder to change modes. This project will be documented soon on the Learn System.

Upcoming Events

PyCon AU

PyCon AU is now on, from 22nd to the 26th of November, at the Melbourne Convention and Exhibition Centre (MCEC) in Narrm/Melbourne. Matt Trentini and Damien George will both be presenting on MicroPython – PyCon AU.

MicroPython Meetup

The next MicroPython Meetup in Melbourne will be on November 27th – Meetup. You can see recordings of previous meetings on YouTube. September’s meeting notes are here.

PyLadies

PyLadies Conference (PyLadiesCon) is a transformative event designed to promote diversity, learning, and empowerment within the Python community. December 6-8, 2024 online – PyLadies.

PyCon US 2025

The community is coming back to Pittsburgh, Pennsylvania for PyCon US 2025 May 14 – May 22, 2025 – us.pycon.org.

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 9.2.1. New to CircuitPython? Start with our Welcome to CircuitPython Guide.

20241121 is the latest Adafruit CircuitPython library bundle.

20241110 is the latest CircuitPython Community library bundle.

v1.24.0 is the latest MicroPython release. Documentation for it is here.

3.13.0 is the latest Python release. The latest pre-release version is 3.13.0a2.

4,117 Stars Like CircuitPython? Star it on GitHub!

Call for Help – Translating CircuitPython is now easier than ever

CircuitPython translation statistics on weblate

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.

38,485 Thanks

38,485 THANKS

Adafruit Discord

The Adafruit Discord community, where we do all our CircuitPython development in the open, reached over 38,485 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

ICYMI

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.


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 7:30pm ET! To join, head over to YouTube and check out the show’s live chat and our Discord!

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Join over 38,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Products 11/15/2024 Featuring Adafruit bq25185 USB / DC / Solar Charger with 3.3V Buck Board! (Video)

Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: CircuitPython 9.2.1, What is DMA, PyConUS 2025 and More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

Adafruit IoT Monthly — Halloween, WiLo, and more!

Maker Business – Adafruit Daily — Checking in on Intel

Electronics – Adafruit Daily — Probe Compensation

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.


Leave a comment

Adafruit has a "be excellent to each other" comment policy. Help us keep the community here positive and helpful. Stick to the topic, be respectful of makers of all ages and skill levels. Be kind, and don't spam - Thank you!

Prove you are human by reading this resistor:

0Ω+/- 5%

0
0
1
2
3
4
5
6
7
8
9

0
0
1
2
3
4
5
6
7
8
9

0
0
1
2
3
4
5
6
7
8
9

5
5
10

Prove you are human by reading this resistor:


Click/tap drag the number in the circle of each slider on the left to the matching color band on the resistor.

Can't view resistor colors? Don't worry! Just type your comment and hit submit without moving the sliders. Our moderators will review and approve in a jiffy.

Click Here for a new resistor image.

New to electronics? Click here to learn how to read resistor values.

Or learn to read resistors by playing Mho's Resistance!