ganglion-ble

OpenBCI Ganglion

WebBluetooth client for the Ganglion EEG board by OpenBCI

Installation

npm install --save ganglion-ble

Usage

import Ganglion from 'ganglion-ble';

async function init () {
  const ganglion = new Ganglion();
  await ganglion.connect();
  await ganglion.start();

  ganglion.stream.subscribe(sample => {
      console.log('sample', sample);
  });
}

init();

Currently, a sample consists of a Uint8Array of 20. Next steps are to process this buffer into a sample following this data structure:

{
  data: [Number, Number, Number, Number],
  timestamp: Date
};

For security reasons, WebBLE must be started from user interaction. Add a connect button that would start the BLE connection. See ./examples/basic/index.js

Accelerometer data example

ganglion.accelData.subscribe(sample => {
    console.log('sample with accelData', sample);
});

Demo

• Clone this repo
• npm install
• npm start
• Go to http://localhost:9000/examples/basic

License

MIT