#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  // put your setup code here, to run once:
  lcd.init();
  lcd.backlight();

  pinMode(7, INPUT);
}

void loop() {
  // awal muncul nama:
  lcd.setCursor (0,0);
  lcd.print ("Fathan Zahedi F.");

  //tombol ditekan absen dan NIM:
  if (digitalRead(7)==HIGH){
    lcd.clear ();
    lcd.setCursor (7,0);
    lcd.print("05");

    lcd.setCursor (3,1);
    lcd.print("2041150072");
    delay (3000);
    lcd.clear();
  }
}