 byte ds1w_addr[8];
 byte ds1w_data[12];
 
+int SerialRequestCounter;     // For debugging purposes
+
 void setup()
 {
   pinMode(ActivityLED, OUTPUT);     // An LED to signal activity
-  digitalWrite(ActivityLED, HIGH);      // Turn the LED on during setup()
+  digitalWrite(ActivityLED, HIGH);  // Turn the LED on during setup()
   Serial.begin(9600);               // Initialise serialport
   Serial.print("... ");
 


  delay(2000);                      // Wait 2s for all sensors to come online
  Serial.println(" cmdMULTIsens ready !");   // Print banner
  digitalWrite(ActivityLED, LOW);       // Turn off the LED at end of setup()
}

int serialRX()

          Value = bmp.getTemperature();
          Serial.print(", ");
          Serial.print(Value);
          Serial.print(", ");
          Serial.print(SerialRequestCounter);
        }
        break;
      case 'P':
