int sensorPin = A0;
int LED = 13;
int sensorValue = 0;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(LED,OUTPUT);  
}

void loop() {
  // put your main code here, to run repeatedly:
  sensorValue = analogRead(sensorPin);
  digitalWrite(LED, HIGH);
  delay(sensorValue);
  digitalWrite(LED,LOW);
  delay(sensorValue);

  Serial.println(sensorValue);
}