WebBluetooth - the missing link
summary
Demonstrates concrete use of the WebBluetooth API to scan and pair, call navigator.bluetooth.requestDevice, getPrimaryService and read/write DataView bytes, and startNotifications; reverses a Play Bulb by writing three RGB bytes to change color and builds demos: a buzzer clicker, a 119‑pixel LED matrix (119 LEDs) driven by BLE characteristics, and a tiny car controlled from a browser using an Arduino Nano RP2040 and JSON→DataView payloads. Notes performance limits (smartphones struggle with large frequent writes) and platform gaps (no WebBluetooth in WebKit/iOS).
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