งานที่ 1

void setup() {

pinMode(13,OUTPUT);

pinMode(12,OUTPUT);

}

void loop() {

  digitalWrite(13, HIGH); 

  delay(200);                 

  digitalWrite(12, LOW);   

  delay(200);

  digitalWrite(12, HIGH); 

  delay(200);                 

  digitalWrite(13, LOW);   

  delay(200);                      

}