// Deklarasi Pin LED
int ledMerah = 13;
int ledKuning = 12;
int ledHijau = 11;
int ledMerah2 = 10;
int ledKuning2 = 9;
int ledHijau2 = 8;
int ledMerah3 = 7;
int ledKuning3 = 6;
int ledHijau3 = 5;
int buzzer = 4;
void setup() {
// Inisialisasi Pin LED sebagai Output
pinMode(ledMerah, OUTPUT);
pinMode(ledKuning, OUTPUT);
pinMode(ledHijau, OUTPUT);
pinMode(ledMerah2, OUTPUT);
pinMode(ledKuning2, OUTPUT);
pinMode(ledHijau2, OUTPUT);
pinMode(ledMerah3, OUTPUT);
pinMode(ledKuning3, OUTPUT);
pinMode(ledHijau3, OUTPUT);
pinMode(buzzer, OUTPUT);
}
void loop() {
digitalWrite(ledMerah, LOW);
digitalWrite(ledKuning, LOW);
digitalWrite(ledHijau, HIGH);
tone(buzzer,500,1000);
digitalWrite(ledMerah2, HIGH);
digitalWrite(ledKuning2, LOW);
digitalWrite(ledHijau2, LOW);
digitalWrite(ledMerah3, HIGH);
digitalWrite(ledKuning3, LOW);
digitalWrite(ledHijau3, LOW);
delay(5000);
digitalWrite(ledMerah, LOW);
digitalWrite(ledKuning, HIGH);
digitalWrite(ledHijau, LOW);
digitalWrite(ledMerah2, LOW);
digitalWrite(ledKuning2, HIGH);
digitalWrite(ledHijau2, LOW);
digitalWrite(ledMerah3, HIGH);
digitalWrite(ledKuning3, LOW);
digitalWrite(ledHijau3, LOW);
delay(1000);
digitalWrite(ledMerah, HIGH);
digitalWrite(ledKuning, LOW);
digitalWrite(ledHijau, LOW);
digitalWrite(ledMerah2, LOW);
digitalWrite(ledKuning2, LOW);
digitalWrite(ledHijau2, HIGH);
tone(buzzer,500,1000);
digitalWrite(ledMerah3, HIGH);
digitalWrite(ledKuning3, LOW);
digitalWrite(ledHijau3, LOW);
delay(5000);
digitalWrite(ledMerah, HIGH);
digitalWrite(ledKuning, LOW);
digitalWrite(ledHijau, LOW);
digitalWrite(ledMerah2, LOW);
digitalWrite(ledKuning2, HIGH);
digitalWrite(ledHijau2, LOW);
digitalWrite(ledMerah3, LOW);
digitalWrite(ledKuning3, HIGH);
digitalWrite(ledHijau3, LOW);
delay(1000);
digitalWrite(ledMerah, HIGH);
digitalWrite(ledKuning, LOW);
digitalWrite(ledHijau, LOW);
digitalWrite(ledMerah2, HIGH);
digitalWrite(ledKuning2, LOW);
digitalWrite(ledHijau2, LOW);
digitalWrite(ledMerah3, LOW);
digitalWrite(ledKuning3, LOW);
digitalWrite(ledHijau3, HIGH);
tone(buzzer,500,1000);
delay(5000);
digitalWrite(ledMerah, LOW);
digitalWrite(ledKuning, HIGH);
digitalWrite(ledHijau, LOW);
digitalWrite(ledMerah2, HIGH);
digitalWrite(ledKuning2, LOW);
digitalWrite(ledHijau2, LOW);
digitalWrite(ledMerah3, LOW);
digitalWrite(ledKuning3, HIGH);
digitalWrite(ledHijau3, LOW);
delay(1000);
}