Challenging Hardware Contests With Zephyr and Lessons Learned
Talkat Open Source Summit Japan + AI_dev: Open Source GenAI & ML Summit + Automotive Linux Summit 2025 · 2025-12-08..12-10·
summary
Three contest projects use Zephyr on custom PCBs: a compact nRF54L50 debug board validating SWD, UART, I2C, SPI and dual-core RISC‑V/ARM execution; an award-winning adaptive directional BLE Audio speaker using Nordic SoC, PMIC and audio IC that proves multi-stream broadcast sync across receivers; and an ultra‑low‑power acoustic wildlife monitor that runs a TinyML model in about 30 KB RAM and ~200 KB ROM and measures idle draw near 0.5 mA consumption. Lessons: reuse Zephyr/Nordic samples, prefer Kicad for PCB, and leverage Zephyr’s broad board support for fast debugging and field tests.
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chapters (9)
- 0:00Hardware contests with Zephyr
- 1:28Beginner with Zephyr
- 2:52Three contests in 2025
- 3:13Nordic nRF5450 debug board
- 7:59Bluetooth LE audio speaker
- 13:25Ultra low power acoustic monitoring
- 19:43Zephyr community meetups
- 20:47Why Zephyr is great
- 21:48Q&A
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