Getting physical with Web Bluetooth
summary
Demonstrates controlling a $10 consumer RGB bulb and a 3D‑printed robot from a web page using Bluetooth Low Energy via navigator.bluetooth.requestDevice and promise chains to get services and characteristics. BLE gives ~2–3 KB/s throughput and ~10 milliseconds latency; devices expose services/characteristics (battery, color) and manufacturers sometimes use opaque numeric UUIDs. Demos work: robot responds reliably from Chrome on Android (screen lock reduces updates), bulb is flaky due to poor contacts but can change colors and run a 250 ms interval for disco mode.
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chapters (9)
- 0:00Introduction and welcome
- 3:07Physical web overview
- 7:00Bluetooth basics
- 14:08Web Bluetooth introduction
- 18:43Web Bluetooth API walkthrough
- 21:55Demo light bulb setup
- 26:58Light bulb interaction
- 30:56Robot demo with volunteer
- 37:05Final demos and conclusion








