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WebUSB CP2102

Simple WebUSB CP2102 communication library.

Useful for reading cp2102-equiped device data from Android devices.

Supported browsers (systems) - https://caniuse.com/webusb

Example

Live demo - https://calcite.github.io/WebUSB-CP2102/example/

import usbCp2102 from '@alcz/webusb-cp2102';

const esp = new usbCp2102({});
esp.connect().then(async () => {
  await esp.initialize();

  const receive = async () => {
    const data = await esp.read();
    const s = String.fromCharCode.apply(null, new Uint8Array(data))
    console.log(s);
    receive();
  }
  receive();
});

Usage

No settings needed on chrome for android (tested on Pixel 4).

To run this lib on linux:

Set udev rule

e.g. create /etc/udev/rules.d/50-chromusb.rules

SUBSYSTEM=="usb", ATTRS{idVendor}=="10c4", ATTRS{idProduct}=="ea60", GROUP="dialout", MODE="0660"

Add user to dialout

sudo usermod -a -G dialout $USER

Temporarily disable cp210x module

sudo modprobe -r cp210x

Based on GitHub gist shared by Seiya Nuta.