int Led = 13;
int button = 2;
int pot = A0;

void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
pinMode(led, OUTPUT);
pinMode(button, INPUT_PULLUP);
pinMode(pot, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
int buttonState = digitalRead(button);
Serial.println(buttonState);
delay(1000);


if(buttonState = LOW) {
  int potValue = analogRead(pot);
  
  for(int i = 0; i<= potValue; i++) {
    digitalWrite(led, HIGH);
    delay(500);
    digitalWrite(led, LOW);
    delay(500);
  }
}
}