#include <LiquidCrystal_I2C.h>

const int LedMerah = 12;
const int LedKuning = 8;
const int LedHijau = 5;

LiquidCrystal_I2C lcd (0x27, 20, 4);

void setup() {
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);
}

void loop() {
lcd.clear();
lcd.setCursor(0,0);
Lampu();
delay(500);

}

void Lampu(){
lcd.clear();
lcd.setCursor(2,1);
lcd.print("LedMerah Nyala");
digitalWrite(LedKuning, LOW);
digitalWrite(LedHijau, LOW);
digitalWrite(LedMerah, HIGH);
delay(3000);
lcd.clear();
lcd.setCursor(2,1);
lcd.print("LedKuning Nyala");
digitalWrite(LedMerah, LOW);
digitalWrite(LedKuning, HIGH);
delay(3000);
lcd.clear();
lcd.setCursor(2,1);
lcd.print("LedHijau Nyala");
digitalWrite(LedKuning, LOW);
digitalWrite(LedHijau, HIGH);
delay(3000);
lcd.clear();
lcd.setCursor(2,1);
lcd.print("LedKuning Nyala");
digitalWrite(LedHijau, LOW);
digitalWrite(LedKuning, HIGH);
delay(3000);


}