11. 시리얼 통신

예제 1

void setup() {
  Serial.begin(9600);
}

void loop() {
  Serial.println("Hello PC");
  delay(1000);
}

예제 2

#define LED 13

void setup() {
  pinMode(LED, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  if(Serial.available()) {
    if(Serial.read() == 'a') {
      digitalWrite(LED, HIGT);
      delay(1000);
      digitalWrite(LED, LOW);
    }
  }
}