#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,16, 2);  


void setup() {

  lcd.init();                      
  lcd.backlight();
#define button 4
#define ledred 3
  pinMode(button, INPUT);
  pinMode(ledred, OUTPUT );
}

void loop() {
  int Switch_State=digitalRead(button);
  if (Switch_State==HIGH){
    digitalWrite(ledred, HIGH);
    delay(500);
     lcd.setCursor(0,0); 
   lcd.print("Lampu Hidup");
   delay(300);
lcd.scrollDisplayLeft();
  }
  else{
    digitalWrite(ledred, LOW);
    delay(500);
    lcd.setCursor(0,1);
    lcd.print("Lampu Mati");
   delay(300);
lcd.scrollDisplayLeft();
  }
}