Fun with Zephyr Project and BBC micro:bit

on YouTube ↗36m

" summary

Zephyr runs full Bluetooth Low Energy on the BBC micro:bit (60 MHz Cortex‑M0, 16 KB RAM) and replaces the closed stack so the hardware becomes hackable; examples compile, flash and work: a 47‑line Eddystone beacon, an HID mouse and a fake heart‑rate sensor, plus a mode that exposes the chip as an HCI UART dongle to Linux. Devices shipped free to UK seventh graders and cost ~$10–$15, enabling quick iteration and on‑device experiments.

AI-written summary · about

" chapters (6)

1. 0:00Start
2. 16:53build your beacon
3. 19:37turn it into a heart rate monitor
4. 23:34measure the temperature of the chip
5. 24:36turn this into a bluetooth dongle
6. 25:03modify the firmware

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