#include <LiquidCrystal.h>

int red = 11;
int yellow = 13;
int green = 12;
int piezo = 8;
int audio = 294;
int audioDuration = 500;

LiquidCrystal lcd(7, 6, 5, 4, 3, 2); 

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  lcd.begin(16, 2);
  pinMode(red, OUTPUT);
  pinMode(yellow, OUTPUT);
  pinMode(green, OUTPUT);
  pinMode(piezo, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:

  for (int i = 0; i < 1; i++) {
    lcd.clear();

    // LED Merah Hidup dan Bunyi Selama 5 Detik
    digitalWrite(yellow, LOW);
    digitalWrite(green, LOW);
    digitalWrite(red, HIGH);
    tone(piezo, 350);
    lcd.print("JANGAN");
    delay(5000);

    lcd.clear();

    // LED Mati Semua
    noTone(piezo);
    digitalWrite(red, LOW);
    digitalWrite(yellow, LOW);
    digitalWrite(green, LOW);
    delay(7000);

    lcd.clear();

    // LED Kuning Hidup dan Bunyi Selama 5 Detik
    digitalWrite(yellow, HIGH);
    tone(piezo, 150);
    lcd.print("AWAS");
    delay(5000);

    lcd.clear();

    // LED Hijau Hidup dan Tidak Bunyi Selama 5 Detik
    noTone(piezo);
    digitalWrite(yellow, LOW);
    digitalWrite(green, HIGH);
    lcd.print("JALAN");
    delay(5000);
  }

  digitalWrite(red, HIGH);
  digitalWrite(yellow, HIGH);
  digitalWrite(green, HIGH);

  delay(1000);

  // digitalWrite(red, HIGH);
  // digitalWrite(yellow, LOW);
  // digitalWrite(green, LOW);

  // tone(piezo, audio, audioDuration);

  // delay(2000);

  // digitalWrite(red, LOW);
  // digitalWrite(yellow, HIGH);
  // digitalWrite(green, LOW);

  // delay(2000);

  // digitalWrite(red, LOW);
  // digitalWrite(yellow, LOW);
  // digitalWrite(green, HIGH);

  // delay(2000);
}