The Zephyr Project community gathered in Prague for an inspiring evening of learning, collaboration, and innovation. Hosted at the Faculty of Information Technology, Czech Technical University, the event brought together developers, engineers, students, and open source enthusiasts from across the region to explore new trends in embedded software and real-time systems.
We extend our gratitude to our Board sponsors : STMicroelectronics and NXP Semiconductors, F&B Sponsors: Nordic Semiconductor and to our content partners – Spotflow, Hardwario, NXP Semiconductors, STMicroelectronics, and FIT CTU, for making this meetup possible.
Highlights from the sessions
Lenka Kosková Třísková, Ph.D., Faculty of Information Technology, Czech Technical University opened the event with a short keynote.
A Primer on Observability of Embedded Systems, David Nepožitek, Developer Advocate, Spotflow
David opened the session with a look into observability for embedded systems. When devices fail in the field, developers often face the choice between guessing blindly or waiting to debug in person. Observability offers a smarter path. He explained how Zephyr’s built-in features can improve visibility into device behavior, why observability differs from simple monitoring, and how to apply these ideas even on constrained and remote systems.
In-source tests with Ztest, Marek Maškarinec, Firmware Engineer, HARDWARIO a.s.
Marek introduced a new approach to testing in Zephyr using Ztest, the project’s framework for unit and integration tests. Traditionally, Ztest runs as a separate application, which limits testing to public APIs. Marek demonstrated how in-source tests placing tests directly inside relevant source files make it possible to test static functions and application code more effectively.
MediaPipe library (libMP), Michal Chvatal, Software engineer, NXP Semiconductors
Michal presented libMP, a lightweight multimedia framework inspired by GStreamer and designed for embedded systems running Zephyr RTOS. The library enables developers to build modular and scalable audio/video pipelines on MCUs.
He introduced the core concepts such as element-based pipeline models and caps negotiation, and offered a live hardware demo showcasing a simple pipeline in action. While not yet part of Zephyr mainline, the framework is under active development, with an RFC planned soon.
Using I3C bus for connecting I3C and I2C sensors, Adam Berlinger, Application Engineer, ST Microelectronics
Adam gave a practical introduction to the I3C bus, explaining its differences from I2C and detailing both the benefits and challenges of using it in embedded applications.
His demo using the Nucleo-H503RB and X-Nucleo-IKS4A1 boards showed how to configure and mix I3C/I2C devices in Zephyr’s device tree a valuable lesson for anyone working on sensor-heavy designs.
Green and Sustainable… embedded SW with Zephyr, Ing. Lenka Kosková Třísková, Ph.D., Faculty of Information Technology, Czech Technical University
Lenka closed the presentations by sharing her team’s research on green electronics and sustainable software design. The group leverages Zephyr OS’s modular architecture, runtime hardware reconfiguration, and power optimization features to study and implement best practices for energy-efficient embedded systems. Her talk highlighted how Zephyr supports environmentally responsible development.
Quiz and Networking
The evening wrapped up with giveaways from NXP and STMicroelectronics, followed by a lively networking session where attendees exchanged ideas and discussed potential collaborations.
🙌 Thank You
A big thank-you to all speakers, sponsors, and attendees who made the Zephyr Project Meetup in Prague a success.
Find the Prague meetup photos here.
The Zephyr Project Meetup in Prague showcased the community’s depth, innovation, and openness. From observability and testing to multimedia and sustainability, each talk reflected how Zephyr continues to empower developers building smarter, more efficient, and transparent embedded systems.
Stay connected with the Zephyr Project community! More meetups, updates, and release news are on the way. Curious to know when is our next meetup? Check out this community calendar!
About the Community Meetups:
This meetup is part of the Zephyr Community Meetup Series, gatherings hosted by community members, with support from the Zephyr Project.
If you are excited about the Zephyr Project and want to share it with your local community, consider hosting an event in your city. Whether you are in Munich or halfway across the globe, we encourage passionate individuals to get involved. Reach out to us and explore how you can bring Zephyr to your community and make a difference in the world of IoT development.
To keep up to date about the project, subscribe to the Zephyr quarterly newsletter or connect with us on @ZephyrIoT, Zephyr Project LinkedIn or the Zephyr Discord Channel to talk with community and TSC members.