int brightness = 0;  // how bright the LED is
int fadeAmount = 5; // how many points to fade the LED by

void setup() {
  // put your setup code here, to run once:
  pinMode(1, OUTPUT);
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  //SIMULTANEOUSLY TURN ON LED LIGHT V1

        digitalWrite(1,HIGH);
        delay(100);
        digitalWrite(1,LOW);
        delay(100);
        digitalWrite(2,HIGH);
        delay(100);
        digitalWrite(2,LOW);
        delay(100);
        digitalWrite(3,HIGH);
        delay(100);
        digitalWrite(3,LOW);
        delay(100);
        digitalWrite(4,HIGH);
        delay(100);
        digitalWrite(4,LOW);
        delay(100);
        digitalWrite(5,HIGH);
        delay(100);
        digitalWrite(5,LOW);
        delay(100);
        digitalWrite(6,HIGH);
        delay(100);
        digitalWrite(6,LOW);
        delay(100);
        
        digitalWrite(5,HIGH);
        delay(100);
        digitalWrite(5,LOW);
        delay(100);
        digitalWrite(4,HIGH);
        delay(100);
        digitalWrite(4,LOW);
        delay(100);
        digitalWrite(3,HIGH);
        delay(100);
        digitalWrite(3,LOW);
        delay(100);
        digitalWrite(2,HIGH);
        delay(100);
        digitalWrite(2,LOW);
        delay(100);
        digitalWrite(1,HIGH);
        delay(100);
        digitalWrite(1,LOW);
        delay(100);

        digitalWrite(2,HIGH);
        delay(100);
        digitalWrite(2,LOW);
        delay(100);
        digitalWrite(3,HIGH);
        delay(100);
        digitalWrite(3,LOW);
        delay(100);
        digitalWrite(4,HIGH);
        delay(100);
        digitalWrite(4,LOW);
        delay(100);
        digitalWrite(5,HIGH);
        delay(100);
        digitalWrite(5,LOW);
        delay(100);
        digitalWrite(6,HIGH);
        delay(100);
        digitalWrite(6,LOW);
        delay(100);

    //second
  

        digitalWrite(1,HIGH);
        digitalWrite(3,HIGH);
        digitalWrite(5,HIGH);
        delay(100);
        digitalWrite(1,LOW);
        digitalWrite(3,LOW);
        digitalWrite(5,LOW);
        delay(100);

        digitalWrite(2,HIGH);
        digitalWrite(4,HIGH);
        digitalWrite(6,HIGH);
        delay(100);
        digitalWrite(2,LOW);
        digitalWrite(4,LOW);
        digitalWrite(6,LOW);
        delay(100);

        digitalWrite(1,HIGH);
        digitalWrite(3,HIGH);
        digitalWrite(5,HIGH);
        delay(100);
        digitalWrite(1,LOW);
        digitalWrite(3,LOW);
        digitalWrite(5,LOW);
        delay(100);

        digitalWrite(2,HIGH);
        digitalWrite(4,HIGH);
        digitalWrite(6,HIGH);
        delay(100);
        digitalWrite(2,LOW);
        digitalWrite(4,LOW);
        digitalWrite(6,LOW);
        delay(100);

        digitalWrite(1,HIGH);
        digitalWrite(3,HIGH);
        digitalWrite(5,HIGH);
        delay(100);
        digitalWrite(1,LOW);
        digitalWrite(3,LOW);
        digitalWrite(5,LOW);
        delay(100);
        
    //third
        analogWrite(1, brightness);
        brightness = brightness + fadeAmount;
        delay(30);

        
    

}
  /////////////////////////////////////////////////////////////
  // ONE BY ONE TURN ON LED LIGHTS
  //digitalWrite(1,HIGH);
  //delay(1000);
  //digitalWrite(1,LOW);
  //delay(1000);
  //digitalWrite(2,HIGH);
  //delay(1000);
  //digitalWrite(2,LOW);
  //delay(1000);
  //digitalWrite(3,HIGH);
  //delay(1000);
  //digitalWrite(3,LOW);
  //delay(1000);
  //digitalWrite(4,HIGH);
  //delay(1000);
  //digitalWrite(4,LOW);
  //delay(1000);
  //digitalWrite(5,HIGH);
  //delay(1000);
  //digitalWrite(5,LOW);
  //delay(1000);
  //digitalWrite(6,HIGH);
  //delay(1000);
  //digitalWrite(6,LOW);
  //delay(1000);

  //SIMULTANEOUSLY TURN ON LED LIGHT V1
  //digitalWrite(1,HIGH);
  //delay(1000);
  //digitalWrite(2,HIGH);
  //delay(1000);
  //digitalWrite(3,HIGH);
  //delay(1000);
  //digitalWrite(4,HIGH);
  //delay(1000);
  //digitalWrite(5,HIGH);
  //delay(1000);
  //digitalWrite(6,HIGH);
  //delay(1000);

  //digitalWrite(1,LOW);
  //delay(1000);
  //digitalWrite(2,LOW);
  //delay(1000);
  //digitalWrite(3,LOW);
  //delay(1000);
  //digitalWrite(4,LOW);
  //delay(1000);
  //digitalWrite(5,LOW);
  //delay(1000);
  //digitalWrite(6,LOW);
  //delay(1000);

  //SIMULTANEOUSLY TURN ON LED LIGHT V2
  //digitalWrite(1,HIGH);
  //digitalWrite(2,HIGH);
  //digitalWrite(3,HIGH);
  //digitalWrite(4,HIGH);
  //digitalWrite(5,HIGH);
  //digitalWrite(6,HIGH);
  //delay(5000);

  //digitalWrite(1,LOW);
  //digitalWrite(2,LOW);
  //digitalWrite(3,LOW);
  //digitalWrite(4,LOW);
  //digitalWrite(5,LOW);
  //digitalWrite(6,LOW);
  //delay(500);