square sketch

Sketch for Simple 2D Test Box

void setup() {

  int i;    

  int led = 13;  //pin 13 on Arduino

int led2 = 12;

int led3 = 11;

int led4 = 10;

int t =200;

  pinMode(led, OUTPUT);

  pinMode(led2, OUTPUT);

  pinMode(led3, OUTPUT);

  pinMode(led4, OUTPUT);

 //loop for forward ten steps

for (i = 0; i < 10; i++) {

   {

      digitalWrite(led, HIGH); //red wire

      delay(t);

      digitalWrite(led, LOW);

      delay(t);

      digitalWrite(led2, HIGH);  //yellow wire

      delay(t);

      digitalWrite(led2, LOW);

      delay(t);

       digitalWrite(led3, HIGH); //green wire

      delay(t);

      digitalWrite(led3, LOW);

      delay(t);

      digitalWrite(led4, HIGH);  //white wite

      delay(t);

      digitalWrite(led4, LOW);

      delay(t);

    }

  }

//ignore  the rest of this sketch for now

  //loop for backward 10 steps

for (i = 0; i < 10; i++) {

  }

}

void loop() {

}