#include <LiquidCrystal.h>


const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);


const int ledPin = 13;
const int buttonPin = 7;

void setup() {
  // put your setup code here, to run once:

  lcd.begin(16, 2);
  lcd.clear();


  pinMode(ledPin, OUTPUT);


  pinMode(buttonPin, INPUT);
}

void loop() {
    // put your main code here, to run repeatedly:

  if (digitalRead(buttonPin) == HIGH) {

    digitalWrite(ledPin, HIGH);


    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Mihajlo Pupin");


    delay(100);
  } else {

    digitalWrite(ledPin, LOW);


    lcd.clear();


    delay(100);
  }
}