IoT 아두이노 0421 - LED8개

int pin_LED[8] = {22,24,26,28,30,32,34,36};
void setup() {
  // put your setup code here, to run once:
  for(int i=0; i<8; i++)
  {
    pinMode(pin_LED[i],OUTPUT);
    digitalWrite(pin_LED[i], LOW);
  }
}

void loop() {
  // put your main code here, to run repeatedly:
  for(int i=0; i<256; i++)
  {
    LED_control(i);
  }
  delay(1000);
  for(int i=0; i<1; i++)
  {
    LED_control(i);
  }
   delay(1000);
}

void LED_control(uint8_t da)
{
  for(int i=0; i<8; i++)
  {
    digitalWrite(pin_LED[i], (da >> i) & 0x1);
  }
}