//Rangkaian Led Nyala Bergantian Dengan Tampilan Status Led Pada LCD

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

#define ledMerah 4
#define ledHijau 2

void setup() {
lcd.init(); lcd.backlight();

pinMode(ledMerah, OUTPUT);
pinMode(ledHijau, OUTPUT);
}

void loop() {
  digitalWrite(ledMerah, HIGH);
  digitalWrite(ledHijau, LOW);
  lcd.setCursor(0,0); lcd.print("LED1 NYALA      ");
  delay(6000);
  digitalWrite(ledMerah, LOW);
  digitalWrite(ledHijau, HIGH);
  lcd.setCursor(0,0); lcd.print("LED2 NYALA      ");
  delay(6000);
}