long  potVal;
void setup()
{
potVal = 0;
pinMode(2, OUTPUT);
pinMode(5, OUTPUT);
pinMode(19, OUTPUT);

}


void loop()
{

    potVal = analogRead(4);
    if (potVal > 1023 && potVal < 2046) {
      digitalWrite(2,HIGH);
      digitalWrite(5,LOW);
      digitalWrite(19,LOW);

    } else if (potVal >= 2046 && potVal <= 3069) {
      digitalWrite(2,HIGH);
      digitalWrite(5,HIGH);
      digitalWrite(19,LOW);
    } else if (potVal >= 3069 && potVal <= 4092) {
      digitalWrite(2,HIGH);
      digitalWrite(5,HIGH);
      digitalWrite(19,HIGH);
    } else {
      digitalWrite(2,LOW);
      digitalWrite(5,LOW);
      digitalWrite(19,LOW);

    }
    delay(200);

}