import processing.serial.*;
//set the background color
int backgroundColor= 255;
//name the serial port for refference later in this code
Serial myPort;
int pulse; 

void setup() {
//serial set up

 println(Serial.list());
//initialize the serial port and assign it to the myPort variable
myPort = new Serial(this, Serial.list()[1], 9600);
float a=sqrt(2);
//stage setup
//set the stage size
size(800, 800);

}
void draw() {
//this colors the background using the backgroundColor from above
background(backgroundColor);
noStroke();
smooth();
fill(pulse*30, random(71), random(152));
ellipse(400, 400, pulse*100, pulse*100);


delay(80);
}
//bring the serial information into your application
void serialEvent(Serial myPort) {
pulse = myPort.read();
// print the serial data.
println(pulse);
}