#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

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

void TulisanBergerak(int row, String message, int delayTime, int kolom) {
  for (int i=0; i < kolom; i++) {
    message = " " + message;  
  } 
  message = message + " "; 
  for (int pos = 0; pos < message.length(); pos++) {
    lcd.setCursor(0, row);
    lcd.print(message.substring(pos, pos + kolom));
    delay(delayTime);
  }
}

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

void loop() {
  
  digitalWrite(LEDM, HIGH);
  TulisanBergerak(0, "Lampu Merah", 100, 16);
  digitalWrite(LEDM, LOW);

  digitalWrite(LEDK, HIGH);
  TulisanBergerak(0, "Lampu Kuning", 100, 16);
  digitalWrite(LEDK, LOW);

  digitalWrite(LEDH, HIGH);
  tone(buzzer, 1000);
  TulisanBergerak(0, "Lampu Hijau", 100, 16);
  noTone(buzzer);
  digitalWrite(LEDH, LOW);
}