I'm Afraid Your Browser Has Been Talking to the Robots Again - A Gentle Intro to WebUSB
summary
WebUSB lets a web page talk to real USB hardware: the demo finds an Adafruit Feather 32u4, opens it with navigator.usb.requestDevice, claims an interface and uses transferOut/transferIn with async/await to send pixels to an OLED and to upload firmware. The stack shown includes webpack, johnny-five, oled-js and avrgirl, and it successfully live-writes a blink program to an AVR via an AVR ISP MkII programmer — even with a two‑decade‑old device — and Microsoft MakeCode already supports drag‑and‑drop flashing.
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chapters (8)
- 0:00Start
- 2:48history of web usb?
- 14:07what is webUSB?
- 16:31why is webUSB better?
- 21:18webUSB use
- 24:42Demos
- 33:10Current support
- 33:21Why support this?
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