Simple Night rider LED pattern arduino uno program.

 

void setup(){   

    

    pinMode(1, OUTPUT);

    pinMode(2, OUTPUT);

    pinMode(3, OUTPUT);

    pinMode(4, OUTPUT);

    }

void loop(){

   

    digitalWrite(1, HIGH);

    delay(100);

    digitalWrite(1, LOW);

    

    digitalWrite(2, HIGH);

    delay(100);

    digitalWrite(2, LOW);

    

    

    digitalWrite(3, HIGH);

    delay(100);

    digitalWrite(3, LOW);

    

    digitalWrite(4, HIGH);

    delay(100);

    digitalWrite(4, LOW);

    digitalWrite(3, HIGH);

    delay(100);

    digitalWrite(3, LOW);

    digitalWrite(2, HIGH);

    delay(100);

    digitalWrite(2, LOW);

    

    digitalWrite(1, HIGH);

    delay(100);

    digitalWrite(1, LOW);  

}