Sharp gp2d120 tutorial anywhere???

Forum 2005-2010 (read only) General Frequently-Asked Questions
2 
int LED =13;

void setup()
{
  pinMode(LED, OUTPUT);
}

void loop()

{
   int distance = analogRead(0);
   
   if ( distance > 2 )
   {
      digitalWrite(LED,LOW); 
   } 
   else
   {
     digitalWrite(LED,HIGH); 
   } 
}

When I run this code the Led is on all the time but when I get in the 17inch and under it goes off. So how do I get it to read cm.