We are excited to announce the agenda for the upcoming Zephyr Project Meetup in Prague, Czech Republic, happening on September 18, 2025 from 6:00 pm – 10:00 pm. This in-person gathering is open to anyone curious about open source, embedded systems programming, and software development. It’s a unique opportunity to meet with developers, engineers, and community members who are shaping the future of real-time operating systems.
Event details:
- Venue: Faculty of Information Technology, Czech Technical University
- Address: Jugoslávských partyzánů 1580/3, 160 00 Praha 6-Dejvice, Czechia
- Map: [Google Maps link]
We are grateful to our
- Board sponsors – STMicroelectronics and NXP Semiconductors for helping make this event possible.
- Content partners – Spotflow, Hardwario, NXP Semiconductors, STMicroelectronics and Faculty of Information Technology, Czech Technical University
Why Prague?
As one of Europe’s most dynamic capitals, Prague has become a growing hub for technology, research, and education. With its strong academic institutions and thriving developer community, it’s the perfect location to bring together people passionate about open source collaboration and embedded innovation.
Why attend?
This meetup is a fantastic opportunity to:
- Learn about the latest Zephyr Project developments and upcoming features
- Get practical insights from industry experts and community leaders
- Connect with embedded engineers, IoT developers, and open source enthusiasts
- Explore real-world use cases, technical challenges, and solutions
- Discover new hardware, tools, and contributions from the community
Whether you are an experienced Zephyr developer, a student learning about RTOS, or simply curious about open source, this event has something for you!
What’s on the agenda?
6:00 pm – 6:15 pm: Welcome Note – Ing. Lenka Kosková Třísková, Ph.D., Faculty of Information Technology, Czech Technical University
6:20 pm – 6:35 pm: A Primer on Observability of Embedded Systems, David Nepožitek, Developer Advocate, Spotflow
When an embedded device fails in the field, you often face two choices: guess blindly, or wait until you can get your hands on it. Observability can often provide a better path. We’ll explore the key ideas behind observability in embedded systems – why it matters, what kinds of questions it can help answer, and how it differs from simple monitoring. We’ll see how to use these ideas with Zephyr’s built-in features, and discuss the challenges of constrained, remote devices. You should leave with a clearer sense of how to start making your own embedded projects more transparent.
6:45 pm – 7:00 pm: In-source tests with Ztest, Marek Maškarinec, Firmware Engineer, HARDWARIO a.s.
Ztest is Zephyr’s own framework for writing unit and integration tests. Usually Ztest tests are written as a separate application, meaning they can only access publicly available APIs. That makes them unusable for static functions and application code, which can be solved by putting the tests directly inside the relevant source files.
7:00 pm – 7:15 pm: Break Time
7:15 pm – 7:30 pm: MediaPipe library (libMP), Michal Chvatal, Software engineer, NXP Semiconductors
A Lightweight Multimedia Framework designed for embeddid systems runnung Zephyr RTOS, inspired by GStreamer. It enables developers to build modular and scalable audio/video pipelines on MCUs.
In this talk, Michal will introduce the core concepts of the framework, including its element-based pipeline model and caps negotiation. Although the framework is not yet part of the Zephyr mainline, it is under active internal development, and we plan to submit an RFC soon.
The session will include a live HW demonstration of a simple audio or video pipeline running on Zephyr, showcasing how LibMP can be used to build applications on constrained devices.
This talk is ideal for developers interested in embedded multimedia, custom subsystems, or extending Zephyr with new capabilities.
7:40 pm – 8:10 pm: A Look into Zephyr Logging Subsystem, Robert Husák, Software Developer, Spotflow
Logs are crucial for developing and maintaining all kinds of software, including embedded systems. Let’s dive into the Zephyr logging subsystem and discuss its most interesting features and optimizations: packaging, deferring, filtering, and so on. We’ll also review the challenges and opportunities of sending logs over the Internet, drawing from our experience developing the Spotflow observability platform device SDK.
8:20 pm – 8:50 pm: Using I3C bus for connecting I3C and I2C sensors, Adam Berlinger, Application Engineer, ST Microelectronics
– Short introduction to I3C and main differences to I2C
– Benefits and challanges of using I3C
– How to configure and mix I3C/I2C devices in device tree
– Demonstration with Nucleo-H503RB and X-Nucleo-IKS4A1
9:00 pm – 9:15 pm: Green and Sustainable… embedded SW with Zephyr, Ing. Lenka Kosková Třísková, Ph.D., Faculty of Information Technology, Czech Technical University
In our University research we focus on designing software for embedded systems concerning green electronics challenges.
We chose the Zephyr OS to demonstrate these approaches because its architecture supports modular design, runtime hardware reconfiguration, and optimization of the entire device’s power consumption. Our contribution summarizes best practices and shows their implementation in the Zephyr OS.
9:15pm – 9:30 pm – Closing game (NXP and ST boards giveaways)
9:30 pm onwards – Networking
Reminder:
The Zephyr Project Meetup in Garching promises an evening full of insights, collaboration, and community building.
📅 Mark your calendars: September 18, 2025
⏰ Time: 6:00 PM – 10:00 PM
📍 Location: Faculty of Information Technology, Czech Technical University located in: Czech Technical University in Prague, Jugoslávských partyzánů 1580/3, 160 00 Praha 6-Dejvice, Czechia.
Seats are limited, so make sure to register early and secure your spot.
Come, connect, learn, and be part of the growing Zephyr Project community. See you in Prague!
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.