Arduino Blink

void setup() {
pinMode(1, OUTPUT); //Tells the arduino that something is here
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);

}

void loop() {
digitalWrite(1, HIGH); //HIGH=Power On
digitalWrite(2, LOW); //LOW=Power OFF
digitalWrite(3, LOW);
delay(500);
digitalWrite(1, LOW);
digitalWrite(2, HIGH);
digitalWrite(3, LOW);
delay(500);
digitalWrite(1, LOW);
digitalWrite(2, LOW);
digitalWrite(3, HIGH);
delay(500);
digitalWrite(1, HIGH);
digitalWrite(2, HIGH);
digitalWrite(3, HIGH);
delay(500);
digitalWrite(1, LOW);
digitalWrite(2, LOW);
digitalWrite(3, LOW);
delay(500);



}