[arduino] 문자 출력하고 LED 깜빡이기~

int ledPin = 13;

void setup() {

  // put your setup code here, to run once:

  Serial.begin(9600);

  pinMode(ledPin, OUTPUT);

}

void loop() {

  // put your main code here, to run repeatedly:  

  digitalWrite(ledPin, HIGH);

  delay(1000);

  digitalWrite(ledPin, LOW);

  Serial.println("Hello World !!");

  delay(1000);

}