 	Ethernet.begin(macTmp, ip);
 	udp.begin(10000);
 
-	// playing song in order to properly... boot the device
+	// delaying in order to properly boot the device
 	// we really need this time (about 7-10 secs)
-	playSong();
+	bootDelay();
 
 	digitalWrite(9, HIGH);
 }
 
-void playSong()
+void bootDelay()
 {
 	tone(pinPiezo, toneAccepted, 100);
 	for (uint8_t i = 0; i < 15; i++)

				else
					unlockDoorForce();
			}
			else if (time > 200)
			{
				// sending notification with button press time
				char buf[10];

int lastCardChkTimeout = 0;
uint8_t lastCardChk = 0;

void bootDelay();
void lockDoor();
void unlockDoor();
void unlockDoorForce();
