// Photoresistor 
// by BARRAGAN <http://barraganstudio.com> 

int val; 
int inputPin = 0;     // Set the input to analog in pin 0 
 
void setup() { 
  Serial.begin(9600); // Start serial communication at 9600 bps 
} 
 
void loop() { 
  val = analogRead(inputPin)/4; // Read analog input pin, put in range 0 to 255 
  Serial.print(val, BYTE);      // Send the value 
  delay(100);                   // Wait 100ms for next reading 
} 
 
 
/* Processing code for this example 
 
// Read data from the serial port and assign it to a variable. Set the fill a 
// rectangle on the screen using the value read from a light sensor connected 
// to the Wiring board 
 
import processing.serial.*; 
 
Serial port; // Create object from Serial class 
int val;     // Data received from the serial port 
 
void setup() { 
  size(200, 200); 
  noStroke(); 
  
  // List all the available serial ports in the output pane. 
  // You will need to choose the port that the Wiring board is 
  // connected to from this list. The first port in the list is 
  // port #0 and the third port in the list is port #2. 
  println(Serial.list()); 
 
  // Open the port that the Wiring board is connected to (in this case #2) 
  // Make sure to open the port at the same speed Wiring is using (9600bps) 
  port = new Serial(this, Serial.list()[2], 9600); 
} 
 
void draw() { 
  if (0 < port.available()) { // If data is available to read, 
    val = port.read();        // read it and store it in val 
  } 
  background(204);            // Clear background 
  fill(val);                  // Set fill color with the value read 
  rect(50, 50, 100, 100);     // Draw square 
} 
 
*/