RxBle rxBle = RxBle.getInstance()

RxBle rxBle = RxBle.getInstance().setTargetDevice("Test")

mRxBle.openBle(this);

rxBle.setScanListener(new RxBle.BleScanListener() {
	@Override
	public void onBleScan(BluetoothDevice bleDevice, int rssi, byte[] scanRecord) {
		// Get list of devices and other information
		if(bledevice.getName().equals("Test")){
			rxBle.connectDevice(bleDevice);
		}
	}
});

rxBle.sendData(data);
// or send with delay
rxBle.sendData(data,delay);

rxBle.receiveData().subscribe(new Action1<String>() {
	@Override
	public void call(String receiveData) {
		// Data will be received while they sent by BLE device
	}
});

rxBle.closeBle();