Open Source Summit Europe 2024

Using Zephyr OS, we successfully developed three firmware versions in under two years, establishing a scalable wireless sensor network for enhanced railway infrastructure monitoring.

This talk will detail the rationale behind our technology selections, including Zephyr OS, BLE, LTE-M, and AWS Iot Core.

We will discuss specific features of Zephyr that facilitated rapid development and the aspects that presented a learning curve. Our session will explore critical design decisions, architectural frameworks using Zephyr, and effective strategies for MCU communication and optimizing battery life. It will show how projects are setup, dependency are managed using west, how firmware is tested, and which features of zephyr we use where. We'll also share common pitfalls and practical lessons learned.

Concluding with recent Zephyr updates and our reflective insights, this presentation will end with what we would have done differently this time.