// Example by Tom Igoe 
 
import processing.serial.*; 
 
Serial myPort;  // The serial port 
char inByte; 
int i = 0; 
 
void setup() { 
  // List all the available serial ports 
  println(Serial.list()); 
  // I know that the first port in the serial list on my mac 
  // is always my  Keyspan adaptor, so I open Serial.list()[0]. 
  // Open whatever port is the one you're using. 
  myPort = new Serial(this, Serial.list()[0], 9600); 
} 
 
void draw() { 
  // Read until we have 10 bytes, then close the port 
  if (myPort.available() > 0) { 
    if (i >= 10) { 
      // Clear the buffer, or available() will still be > 0 
      myPort.clear(); 
      // Close the port 
      myPort.stop(); 
      println("10 bytes! I'm done!"); 
    } else { 
      inByte = myPort.readChar(); 
      println(inByte); 
    } 
    i++; 
  } 
}