 
 bool validate_gps_buffer()
 {
-  String a_string;
+  //String a_string;
   byte_zero = 0;
   for(i = gps_read_buffer.indexOf('$') + 1; i < gps_read_buffer.lastIndexOf('*'); i++)
   {



  //
  //	Seems more accurate of you read temperature first
  //

  //temperature = (1.8 * bmp.readTemperature()) + 32 - 5.6;
  //temperature = (1.8 * bmp.readTemperature()) + 32;
  //pressure = bmp.readPressure() * 0.000295300;


}





  for(i =0; i < BARO_HISTORY_LENGTH - 1 ; i++)
  {
    if(pressure_history[i] > 1)
