int LEDpin = 8;
void setup() {
  // put your setup code here, to run once:
pinMode(LEDpin, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
int value = analogRead(A0);
digitalWrite(LEDpin, HIGH);
delay(value);
digitalWrite(LEDpin, LOW);
delay(value);
Serial.println(value);
}