/*
  Blink
  Turns on an LED on for one second, then off for one second, repeatedly.

  This example code is in the public domain.
*/

// Pin 13 has an LED connected on most Arduino boards.
// Pin 11 has the LED on Teensy 2.0
// Pin 6  has the LED on Teensy++ 2.0
// Pin 13 has the LED on Teensy 3.0
// give it a name:
int led = 3;
int photo = A2;
int val = 0;

// the setup routine runs once when you press reset:
void setup() {
  // initialize the digital pin as an output.
  pinMode(led, OUTPUT);
 // pinMode(photo, INPUT);
}

// the loop routine runs over and over again forever:
void loop() {
  val = analogRead(photo);
  //val=digitalRead(photo);
  if (val > 550) {
    digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  } else {
    //delay(1000);               // wait for a second
    digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
    //delay(1000);               // wait for a second
  }
}