 const int rLed = 8;              //
 const int LM35 = A0;             // Temperature sensor
 Adafruit_BMP085 bmp;
-//SoftwareSerial gpsSerial(2, 3); // TX, RX - GPS 
+const int sal = A5;
+//SoftwareSerial gpsSerial(2, 3); // TX, RX - GPS
 
 File dataFile;
 unsigned long int ttime;

  Serial.print("The time is: ");
  Serial.println(ttime);
  Serial.println("");
}

  dataFile.print(bmp.readSealevelPressure());
  dataFile.print(",");
  dataFile.print(bmp.readAltitude(101500));
  dataFile.print(",");
  dataFile.print(analogRead(sal));
  // if the current sea level pressure is known, it will
  // vary with weather and such. If it is 1015 millibars
  // that is equal to 101500 Pascals.
