~/talk

Bangle.js - an Open Source Smartwatch

Talkat Web AI Summit 2025 · on Friday, 2025-10-17· [embedded-and-hardware, javascript]
slides:none on file

An open-source smartwatch called Bangle.js runs JavaScript on ARM Cortex-M with under 8KB execution stack, ships with an always-on color screen and up to four-week battery life, and already hosts about 600 apps on GitHub. It streams sensor data over Web Bluetooth using UART.js and a browser-based uploader/web IDE, accepts JS snippets sent to execute on-device, pairs via QR to avoid scanning 500 devices, and includes TensorFlow Lite for microcontrollers (no on-watch computer vision).

AI-written summary · about

  1. 0:00Introduction to Espruino
  2. 2:20Introducing Bangle.js
  3. 3:53Web Bluetooth and Hardware
  4. 5:34Getting started with Bangle
  5. 7:33App loader and Web AI
  6. 9:07Developing custom apps
  7. 10:43Programming and debugging
  8. 12:22AI possibilities and closing
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