#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
//====================================
const int button = 8;
const int led = 2;
int buttonstat = 0;

void setup() {
  // put your setup code here, to run once:
  pinMode(led, OUTPUT);
  pinMode(button, INPUT);
  Serial.begin(9600);
  lcd.init();
  lcd.backlight(); //menampilkan cahaya latar lcd i2c 
 
}

void loop() {
  // put your main code here, to run repeatedly:
  buttonstat = digitalRead(button);
  if (buttonstat == HIGH)
  {
    digitalWrite(led, HIGH);
    Serial.println("LED ON");
    lcd.setCursor(1,0);
    lcd.print("LED ON");
  }
  else {
    digitalWrite(led, LOW);
    Serial.println("LED OFF");
    lcd.setCursor(1,0);
    lcd.print("LED OFF");
  }
  
  //lcd.setCursor(0, 0);
  //lcd.print("HELLO");
  //lcd.scrollDisplayRight(); // tulisan bergerak kekanan
  //lcd.scrollDisplayLeft(); // tulisan bergerak kekiri
  delay(500);
}