/*
 * 
 *Program will make the circle bigger each time a new serial data
 *arrives to Processing.
 *More info:
 *http://www.iua.upf.es/~jlozano/interfaces/blow_sensor.html
 *Jose Lozano
 *
 *
 */


import processing.serial.*;
String portname = "COM8";  
Serial port; 
int val=0;  

void setup() 
{
  size(800, 800);
  background(0);
  smooth();
  
  // Open serial port / Abrir puerto serie
  port = new Serial(this, portname, 57600);
}

void draw()
{
  if (port.available() > 0) {  
    port.clear();
    val = val + 5;
    fill(204, 102, 0);  
    ellipse(width/2, height/2, val,val);
  }

}
void mousePressed() { //To clear screen press mouse 
  background(0);
  val = 0;
}