       textMessage += String(DATA_DELIM) + String(minutesElapsed) + " " + String(sensorReadings[i].distance) + " " + String(sensorReadings[i].temperature);
     }
 
+    // Turn on MOSFET GSM
+    digitalWrite(MOSFET_GSM_PIN, HIGH);
+    delay(1500);
+
 
     // GSM baud rate. Start communication link with GSM shield.
     Serial.begin(19200);


// Settings
// -------------------------------
#define SENSOR_TYPE                "d"
#define SEND_DATA_AFTER_X_READINGS 4
#define SLEEP_CYCLES               4
#define NUM_THERM_READINGS         5
#define THERM_READING_DELAY        20

    LowPower.powerDown(SLEEP_8S, ADC_OFF, BOD_OFF);
  }

  // 2. Turn on thermistor.
  // ----------------------
  digitalWrite(THERM_PIN, HIGH);
