comunication android-arduino

gistfile1.java

//Prendemos LED
public void sendOn(View v){
  HttpClient httpclient = new DefaultHttpClient();
  HttpPost httppost = new HttpPost("http://192.168.0.110/?L=1");
  //Esta es nuestra url donde mandaremos el parametro uno
  try {
         //List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
         //Codigo anterior donde tenia el error, pero esto funciona si queremos hacer post
         //nameValuePairs.add(new BasicNameValuePair("L", "1"));
	 //httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
         httpclient.execute(httppost); // mandamos el parametro al sercidor
      } catch (ClientProtocolException e) {
	  // TODO Auto-generated catch block
      } catch (IOException e) {
	  // TODO Auto-generated catch block
      }
 }

//Apagamos LED
public void sendOff(View v){
  HttpClient httpclient = new DefaultHttpClient();
  HttpPost httppost = new HttpPost("http://192.168.0.110/?"); 
  //URL donde lo apagamos ya que no envia ninguna variable, nosotros podriamos ponerle un 0 
  pero en el codigo del arduino hay que cambiarlo
      try {
         //List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
         //nameValuePairs.add(new BasicNameValuePair("L", "1"));
         // httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
	   httpclient.execute(httppost); 
	  } catch (ClientProtocolException e) {
	        // TODO Auto-generated catch block
	  } catch (IOException e) {
	       // TODO Auto-generated catch block
	  }
}