#define LED1 5
#define LED2 6
#define LED3 7

void setup() {
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
}

void loop() {
  digitalWrite(LED1, HIGH);
  delay(500);
  digitalWrite(LED1, LOW);
  
  digitalWrite(LED2, HIGH);
  delay(500);
  digitalWrite(LED2, LOW);
  
  digitalWrite(LED3, HIGH);
  delay(500);
  digitalWrite(LED3, LOW); // Perbaikan karakter yang salah
}