/*
  Arduino Starter Kit example
 Project 6  - Photo Resistor
 This sketch is written to accompany Project 6 in the
 Arduino Starter Kit

 Parts required:

 photoresistor

 10 kilohm resistor
 This example code is part of the public domain
*/

// variable to hold sensor value
int sensorValue;

// LED pin
const int ledPin = 13;


void setup() {

  Serial.begin(9600);      // open the serial port at 9600 bps, used for the console communication

  // Make the LED pin an output
  pinMode(ledPin, OUTPUT);
}


void loop() {

  //read the input from A0 and store it in a variable
  sensorValue = analogRead(A0);

 // write the value to the console
  Serial.println(sensorValue);

  if (sensorValue > 400 ) 
      digitalWrite(ledPin, LOW);
  else
      digitalWrite(ledPin, HIGH);

  // wait for a moment
  delay(500);

}
//END!