   /* Begin communication over Serial Port with a baud
      rate of 9600*/
   Serial.begin(BAUDRATE);
+  pinMode(LED_PIN, OUTPUT);
+  digitalWrite(LED_PIN, HIGH);
+  pinMode(TOUCH_SENSOR_PIN, INPUT);
+  pinMode(BUZZER_PIN, OUTPUT);
 }
 
 /* Main Arduino loop */

  if (!(curMillis - updateTime >= updateMilliThreshold)) {
    /* Prevent writing to serial to avoid serial port data overflow */
    writeToSerial = false;
  }

  /* Wait for 6 bytes of data to have been sent over serial */


  /* When it is possible to reply to serial */
  if (writeToSerial) {
    updateTime = curMillis;
    /* Identification byte */
    Serial.write(ARDUINO_ID);

    Serial.write(analogRead(LIGHT_SENSOR_PIN) < 800 );
    Serial.write(digitalRead(TOUCH_SENSOR_PIN));
    Serial.write(analogRead(PIEZO_PIN) > 600);
    
  }
}
