import processing.serial.*;
Serial myPort;

void setup() {
  size(360, 640);
  background(102);
  noStroke();
  fill(0, 102);
  printArray(Serial.list());

  myPort = new Serial(this, Serial.list()[0], 9600);
}

void draw() {
 while (myPort.available() > 0) {
    //int inByte = myPort.read();
    int inByte = 20;
    rect(0, 640, 600, (-5 + -inByte));
 }

}