The Arduino open-source ecosystem is back in my feed at exactly the right moment. Ever since Qualcomm announced it would acquire Arduino, I’ve heard the familiar worry: “Will the corporate parent eventually sand down the rough, community-first edges that made Arduino matter?” Today’s update from the Arduino team doesn’t answer every long-term question, but it does put something concrete on the table: lots of fresh code, in public, ready to be inspected, forked, and improved.
 

Arduino logo over abstract Arduino background.
Source: Arduino.


The context matters. When the acquisition agreement was announced on October 7, 2025, it was easy to imagine a future where “open source” becomes a slogan rather than a practice. So I watch the boring-but-important signals: public repositories, real issue trackers, contribution guides, and the kind of work that invites outsiders in instead of pushing them to the sidelines.

What Just Landed in the Arduino Open-Source Ecosystem

In the new post, the team says it has published and updated dozens of repositories across libraries, cores, and development tools. Highlights include new repositories and examples for the Nesso N1 IoT board; a growing set of Modulino sensor-node libraries (graphics plus multiple sensor drivers, alongside a couple of STM32duino time-of-flight sensor libraries); and fresh updates to both the IDE and the command-line tooling.

There’s also a push on platform breadth: expanded MicroPython support and ongoing improvements across core libraries for the usual families (AVR, SAMD, and others). If you mainly live in “sketch land,” this might feel abstract. If you build products, integrations, or board support packages, it’s the unglamorous layer that determines whether a platform stays healthy.

Arduino UNO Q: The Part I Was Waiting to See

The most telling part, for me, is the “full stack” publication for the Linux-powered Arduino UNO Q board. Not just user-level libraries, but the software plumbing that makes the platform work end-to-end, from App Lab components down to the Linux kernel itself. For anyone still uneasy about the Qualcomm era, that’s a meaningful choice: the easiest way to calm a community is to leave the source where everyone can see it.

Open Source, Measured in Commits

Arduino also points to upstream work, noting it contributed about 200 patches to the Zephyr codebase and released its first Zephyr-based core. That’s the kind of evidence I find hard to argue with: when a vendor contributes upstream, the work has to survive review outside the company walls.

If you want the wider picture on Elektor, start with our Arduino coverage. Otherwise, the simplest takeaway is this: the Arduino open-source ecosystem is still being exercised in public, and right now that’s the most credible signal Arduino can send.

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