/*
 CdS to Serial
 Ouptut the reading on the CdS pin to Serial.
 */

const int inputPin = A0;         // use analog 0 (A0) as input pin
const int ledPin = 13;           // connect the LED to pin 13

int lightLevel = 0;              // used to store the input value

void setup() {
  Serial.begin(9600);            // initialize serial communication
  pinMode(ledPin, OUTPUT);       // make LED's pin an output
}

void loop() {
  lightLevel = analogRead(inputPin);  // get an analog reading      
  Serial.println(lightLevel);         // print out the reading
  delay(500);                         // delay between reads
}