Android + MSP430 + HM 10 Bluetoothadapter

Hallo ich wollte oben genannte Konstellation zum Laufen bekommen.

Das momentane Problem ist, dass beim Aufruf von socket.connect() eine 
Exception ausgelöst wird: "read failed, socket might closed or timeout, 
read ret: -1"

code ist erst einmal folgender:

package com.example.rpeglow.bttest;

import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.ParcelUuid;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import java.io.IOException;
import java.util.UUID;
import java.util.Vector;

public class MainActivity extends AppCompatActivity {

    TextView textView;
    Button button;
    BluetoothAdapter bluetoothAdapter;
    BluetoothDevice device;
    Vector<BluetoothDevice> vector = new Vector<BluetoothDevice>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        textView = (TextView) findViewById(R.id.tv1);

        bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
        bluetoothAdapter.enable();


        BroadcastReceiver receiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                String action = intent.getAction();

                if (BluetoothDevice.ACTION_FOUND.equals(action)) {
                    device = 
intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
                    bluetoothAdapter.cancelDiscovery();

                    textView.setText(device.getName() + " " + 
device.getAddress());
                }
            }
        };


// Register the BroadcastReceiver
        IntentFilter filter = new 
IntentFilter(BluetoothDevice.ACTION_FOUND);
        registerReceiver(receiver, filter); // Don't forget to 
unregister during onDestroy


        bluetoothAdapter.startDiscovery();


    }

    public void click(View v) {
        BluetoothSocket socket=null;

        try {
            socket = device.createRfcommSocketToServiceRecord(new 
UUID(0xFFE1, 0x0815));
        } catch (IOException ex) {

        }


            try {


              socket.connect();


                //socket.close();

            } catch (IOException ex) {
                textView.setText(ex.getLocalizedMessage());

            }

            //bluetoothAdapter.disable();



    }
}

was läuft da falsch? über die benutzeroberfläche zu verbinden klappt 
super.