#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

  int LEDM = 2;
  int LEDK = 3;
  int LEDH = 4;
  int buzzer = 5;

void setup() {
  lcd.init();
  lcd.backlight();
  pinMode(LEDM, OUTPUT);
  pinMode(LEDK, OUTPUT);
  pinMode(LEDH, OUTPUT);
  pinMode(buzzer, OUTPUT);
}

void loop() {
  digitalWrite(LEDM, HIGH);
  lcd.print("Lampu Merah");
  delay(1000);
  lcd.setCursor(2, 1);
  lcd.clear();
  digitalWrite(LEDM, LOW);

  digitalWrite(LEDK, HIGH);
  lcd.print("Lampu Kuning");
  delay(1000);
  lcd.setCursor(2, 1);
  lcd.clear();
  digitalWrite(LEDK, LOW);

  digitalWrite(LEDH, HIGH);
  lcd.print("Lampu Hijau");
  delay(1000);
  lcd.setCursor(2, 1);
  lcd.clear();
  digitalWrite(LEDH, LOW);
}