int sensorValue = 0;
void setup()
{
pinMode(A0, INPUT);
pinMode(13, OUTPUT);
}
void loop()
{
// read the value from the sensor
 sensorValue = analogRead(A0);
// turn the LED on
digitalWrite(13, HIGH);
// pause the program for <sensorValue> millseconds
delay(sensorValue); // Wait for sensorValue millisecond(s)
// turn the LED off
digitalWrite(13, LOW);
// pause the program for <sensorValue> millseconds
delay(sensorValue); // Wait for sensorValue millisecond(s)
}