// Serial Output 
// by BARRAGAN <http://barraganstudio.com> 

int switchpin = 0;  // switch connected to pin 0 
 
void setup() { 
  pinMode(switchpin, INPUT);  // pin 0 as INPUT 
  Serial.begin(9600);         // start serial communication at 9600bps 
} 
 
void loop() { 
  if(digitalRead(switchpin) == HIGH)  // if switch is ON 
  { 
    Serial.print(1, BYTE);                  // send 1 to Processing 
  }else{ 
    Serial.print(0, BYTE);                  // otherwise send 0 to Processing 
  } 
  delay(100);                         // wait 100ms 
} 
 
/* Processing code for this example 
 
// switch serial 
// by BARRAGAN <http://barraganstudio.com> 
 
// Demonstrates how to read data from the Wiring I/O board, in order 
// to fill a rectangle on the screen using a lighter color when a switch 
// connected to the Wiring I/O board is pressed, and fill it with darker 
// color when the switch is released. 
 
// created 13 May 2004 
// revised 29 April 2007 
 
import processing.serial.*; 
 
Serial port;  // create serial port object 
int val;      // variable to receive data from the serial port 
 
void setup() 
{ 
  size(200, 200); 
  noStroke(); 
  frameRate(10); 
 
  // 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(#222222);        // clear background 
  
  if( val == 0 )              // if 0 was received 
  { 
    fill(#666660);            // set fill color 
  }else{ 
    fill(#CCCCC0);            // set fill to a different color 
  } 
  
  rect(50, 50, 100, 100);     // draw square 
} 
 
*/