execute this sketch

proc_edison

import com.leapmotion.leap.*; //leap motion library
import processing.serial.*; //serial communication library
Controller leap; //define a controller

Serial port; //define a port

void setup(){
  size(250,250); //sketch size
   leap = new Controller(); // initialize the controller
    port = new Serial(this, Serial.list()[2], 115200);//initialize the port in my case its [2]
  
}

void draw(){
  FingerList fingers = leap.frame().fingers(); //finger list to get the fingers count
  int count = fingers.count(); // integer holds the count of fingers
  
 
  background(0);  // box background color
  fill(255); // text color
  textSize(height/2); // text size
  text(count, 90, 160); // text value and position on the box
 port.write(count+"\r"); // port sends the integer to arduino*/


}