도움을 받아 문자열값을 보내는법을 알았는데요...
갤s로 실행시키면 강제종료되어버립니다..
안드로이드매니페스트에 블루투스 권한두 줬구요...
뭐가 문제일까요...

package aaa.gg;

import java.io.*;
import java.util.*;

import lejos.nxt.*;
import android.app.Activity;
import android.bluetooth.*;
import android.os.Bundle;
import lejos.nxt.comm.*;
public class ddd extends Activity {
 private BluetoothAdapter mBtAdapter;
 private BluetoothSocket mmSocket;
 private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
 final String message = "Motor.A.setSpeed(700)";
    final String message1 = "Motor.A.forward()";
    byte[] msgBuffer = message.getBytes();
    byte[] msgBuffer1 = message1.getBytes();
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        mBtAdapter = BluetoothAdapter.getDefaultAdapter();
        BluetoothDevice device = mBtAdapter.getRemoteDevice("00:16:53:05:93:0E");
        while(true){
        try {
   mmSocket = device.createRfcommSocketToServiceRecord(MY_UUID);
   mmSocket.connect();//소켓연결
   OutputStream mmOutStream = mmSocket.getOutputStream();
         mmOutStream.write(msgBuffer);
         mmOutStream.write(msgBuffer1);
       
        
        
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
        
        }
       
       
       
    }
}