1985霹靂遊俠 pili led

 int timer=100;

void setup() {

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

  for(int i=2;i<7;i++)

  {

    pinMode(i,OUTPUT);

  }

}

void loop() {

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

  for(int i=2; i<7;i++)

  {

    digitalWrite(i,HIGH);

    delay(timer);

    digitalWrite(i,LOW);

  }

  for(int i=6 ;i>=2;i--)

  {

    digitalWrite(i,HIGH);

    delay(timer);

    digitalWrite(i,LOW);

  }

}