Bluetooth connection examples

[tarang9211]

Could you post some more examples on how to connect to a device?

I tried using the examples from the README.md to connect my iphone to my mac using the UUID and MAC address, but none of them worked.

Thanks!

[marcosinigaglia]

Hi, you have to scan for the peripherals and then use the id of the peripheral to connect.

[tarang9211]

So first I would call BleManage.scan() and then connect right? So will the scan() method return a list of UUID or MAC addresses of active bluetooth devices?

[marcosinigaglia]

First you have to handle BleManagerDiscoverPeripheral event, then start the scan and you receive the peripheral finded.

[tarang9211]

Hi Marco, I tried that. Does this code look right?

class bluetooth extends Component {
  render() {
    return (
        <View style = { styles.container } >
            <TouchableHighlight onPress = { this.btnPress }>
                <Text>Bluetooth test</Text>
            </TouchableHighlight>
        </View>
    );
  }

  btnPress() {

    console.log(typeof BleManager === 'undefined');

    console.log(DeviceEventEmitter.addListener());

    DeviceEventEmitter.addListener('BleManagerDiscoverPeripheral', (args) => {
        console.log(args)
        BleManager.scan(args.id, 5)
        .then(() => {
            console.log('here');
        })
    });

  }
}

The code for console.log(args) does not seem to be called at all.

[marcosinigaglia]

Try this:

componentDidMount() {
  this.handleDiscoverPeripheral = this.handleDiscoverPeripheral.bind(this);

  NativeAppEventEmitter.addListener(
    'BleManagerDiscoverPeripheral',
    this.handleDiscoverPeripheral
  ); 
}

btnPress() {
  BleManager.scan([], 5);
}

handleDiscoverPeripheral(data){
  console.log(data);
}

[DarrylD]

That example would be awesome for documentation example