 
 // Settings
 // -------------------------------
+#define SENSOR_TO_RIVER_BED        2000
 #define SENSOR_TYPE                "d"
-#define SEND_DATA_AFTER_X_READINGS 4
+#define SEND_DATA_AFTER_X_READINGS 10
 #define SLEEP_CYCLES               4
 #define NUM_THERM_READINGS         5
 #define THERM_READING_DELAY        20

      textMessage += String(DATA_DELIM) + String(minutesElapsed) + " " + String(sensorReadings[i].distance) + " " + String(sensorReadings[i].temperature);
    }


    // GSM baud rate. Start communication link with GSM shield.
    Serial.begin(19200);

      //                   Battery will die quickly if power cannot be turned off.
      //                   Send SOS SMS?
    }

    // Turn off GSM MOSFET.
    digitalWrite(MOSFET_GSM_PIN, LOW);
    delay(2000);
  }
}