02_LED_ON_OFF-(3)

int arr[8];

void setup() {
  // put your setup code here, to run once:
  for (int i = 0; i<sizeof(arr)/sizeof(int); i++) { //아두이노에서는 int가 2바이트)
    arr[i] = i+2;
  }
  for (int i = 0; i<sizeof(arr)/sizeof(int); i++) {
    pinMode(arr[i],OUTPUT);
  }
}

void loop() {
  for (int i = 0; i<sizeof(arr)/sizeof(int); i++) {
    digitalWrite(arr[i],HIGH);
    delay(10);
    digitalWrite(arr[i],LOW);
    delay(10);
  }
}