int pot = A0;
int light = 13;
void setup()
{
  Serial.begin(9600);
  pinMode(light, OUTPUT);
}

void loop()
{
  int potvalue = analogRead(pot);
  Serial.print("pot analog value");
  Serial.println(potvalue);
  digitalWrite(light, HIGH);
  delay(potvalue);
  digitalWrite(light, LOW);
  delay(potvalue);

}