   if (buttonState == HIGH) {
 
     if(checkTimer(&timer2, 500) == 1) {    
-      Serial.println("Button click!");
+//      Serial.println("Button click!");
       
       if(lightStatus == 0) {
-        // turn LED on:    
-        digitalWrite(ledPin, HIGH);  
         slcd.backlight();
         lightStatus = 1;
       }
       else {
-        digitalWrite(ledPin, LOW);      
         slcd.noBacklight();
         lightStatus = 0;
       }

unsigned long timer1 = 0;
unsigned long timer2 = 0;

float getTemperature() {

  int a = analogRead(temperatureAnalogPin);
  int B=3975;                  //B value of the thermistor

  // initialize the pushbutton pin as an input:
  pinMode(buttonPin, INPUT);     
 
  pinMode(relayPin, OUTPUT);
 
  // set up
  slcd.begin();
  slcd.backlight();
