[아두이노] 신호등 만들기

#define RED_LED 4

#define YELLOW_LED 3

#define GREEN_LED 2

void setup () {                 

  pinMode(RED_LED, OUTPUT);

  pinMode(YELLOW_LED, OUTPUT);

  pinMode(GREEN_LED, OUTPUT);

  digitalWrite(RED_LED, HIGH);

}

void loop () {

  delay(3000);

  digitalWrite(RED_LED, LOW); digitalWrite(YELLOW_LED, HIGH);

  delay(3000);

  digitalWrite(YELLOW_LED, LOW); digitalWrite(GREEN_LED, HIGH);

  delay(3000);

  digitalWrite(GREEN_LED, LOW); digitalWrite(RED_LED, HIGH);

} 

날짜: 2016년 09월 01일