const bluetooth = require('node-bluetooth');
//console.log(bluetooth)

const device = new bluetooth.DeviceINQ();
try {
    device
        .on('finished', console.log.bind(console, 'finished'))
        .on('found', function found(address, name){
            console.log('Found: ' + address + ' with name ' + name);
            // find serial port channel
            device.findSerialPortChannel(address, function(channel) {
                console.log('Found RFCOMM channel for serial port on %s: ', name, channel);
                // make bluetooth connect to remote device
                try {
                    bluetooth.connect(address, channel, function (err, connection) {
                        if (err) return console.error(err);
                        connection.delimiter = Buffer.from('\n', 'utf8');
                        connection.on('data', (buffer) => {
                            console.log('received message:', buffer.toString());
                        });
                        connection.write(new Buffer('Hello!', 'utf-8'), () => {
                            console.log('wrote');
                        });
                    });
                } catch (e) {
                    console.log(123123)
                     console.log(e)
                }

            });

        })
    device.scan();
} catch (err) {
    console.log(err)
}