#include <LiquidCrystal_I2C.h>  

const int ledMerah = 13 ;
const int ledKuning = 12 ;
const int ledHijau = 11 ;

LiquidCrystal_I2C lcd (0x27, 16, 2);

void setup() {
  // put your setup code here, to run once:
pinMode(ledMerah, OUTPUT);
pinMode(ledKuning, OUTPUT);
pinMode(ledHijau, OUTPUT);

lcd.init();       
  lcd.backlight();   
  lcd.setCursor(0,0);

digitalWrite(ledMerah, LOW);
digitalWrite(ledKuning, LOW);
digitalWrite(ledHijau, LOW);
delay(3000);

}

void loop() {
  // put your main code here, to run repeatedly:
     lcd.clear();
    lcd.setCursor(2,1); 

    lcd.print("LED Merah");     
    digitalWrite(ledMerah, HIGH);  
    digitalWrite(ledKuning, LOW); 
    digitalWrite(ledHijau, LOW);
    delay(2000);
    lcd.clear();
    lcd.setCursor(2,1); 
 lcd.print("LED Kuning");
 digitalWrite(ledMerah, LOW);  
    digitalWrite(ledKuning, HIGH); 
    digitalWrite(ledHijau, LOW);
    delay(2000);
    lcd.clear();
    lcd.setCursor(2,1); 
    lcd.print("LED Hijau");
 digitalWrite(ledMerah, LOW);  
    digitalWrite(ledKuning, LOW); 
    digitalWrite(ledHijau, HIGH);
    delay(2000);
}