ember-bluetooth

ember-bluetooth

This is an ongoing effort to build an easy-to-use addon to intereact with bluetooth devices within ember apps.

Web Bluetooth API

Web Bluetooth - Draft Community Group Report

Web Bluetooth Samples

Google Chrome - Bluetooth samples

Installation

ember install ember-bluetooth

Usage

Inject the bluetooth service

import Ember from 'ember';

export default Ember.Component.extend({
  bluetooth: Ember.inject.service(),
  ...
});

Connect a device.

IMPORTANT! This action should be the result of an user intereaction, otherwise the API will block the connection

<button class="btn" {{action "connect"}}><span>Connect!</span></button>

import Ember from 'ember';

export default Ember.Component.extend({
  bluetooth: Ember.inject.service(),

  actions: {
    connect() {
      this.get('bluetooth')
      .connectDevice({ filters: [{ services: ['battery_service'] }] })
      .then((device) => {
        console.log(`Connected to device: ${JSON.stringify(device)}`);
      });
    }
  }
});

Request a service/characteristic

This must be done after the connection.

import Ember from 'ember';

export default Ember.Component.extend({
  bluetooth: Ember.inject.service(),

  actions: {
   ...

   readValue() {
    this.get('bluetooth')
      .readValue('battery_service', 'battery_level')
      .then(value => {
       console.log(value);
      });
    }
  }
});

You can also request notification if a characteristic changes

import Ember from 'ember';

export default Ember.Component.extend({
  bluetooth: Ember.inject.service(),

 _handleValueEvent(event) {
    let batteryLevel = event.target.value.getUint8(0);
    console.log(batteryLevel);
  },

  actions: {
   ...

    startNotifications() {
      this.get('bluetooth')
        .startNotifications('battery_service', 'battery_level', (event) => this._handleValueEvent(event));
    }
  }
});

You can stop the notification ( not yet implemented in the Web Bluetooth API)

import Ember from 'ember';

export default Ember.Component.extend({
  bluetooth: Ember.inject.service(),

  actions: {
   ...

     stopNotifications() {
       this.get('bluetooth').stopNotifications();
     }
  }
});

Running

• ember serve
• Visit your app at http://localhost:4200.

Running Tests

• npm test (Runs ember try:each to test your addon against multiple Ember versions)
• ember test
• ember test --server

Building

• ember build

For more information on using ember-cli, visit https://ember-cli.com/.