The program must be something similiar to this

                    I have started learning to work with Kinect and processing for my Final Thesis. Now i have to control a Servo motor by waving my hand in front of Kinect. 

I have included println(x) to display the value of the X cordinates.

The program works fine (the x coordinates displayed are as expected) as long as there is no servo connected however when i plugin this command to communicate with the servo

spos= x/4; 

     port.write("s"+spos);  

the program acts in a weird manner and i can see that there are  plenty of random values in the x values. 

Can someone please help me with this?

Program for the Arduino Environment

#include <Servo.h>

Servo servo1; Servo servo2; 

void setup() {

  pinMode(1,OUTPUT);

  servo1.attach(14); //analog pin 0

  //servo1.setMaximumPulse(2000);

  //servo1.setMinimumPulse(700);

  servo2.attach(15); //analog pin 1

  Serial.begin(19200);

  Serial.println("Ready");

}

void loop() {

  static int v = 0;

  if ( Serial.available()) {

    char ch = Serial.read();

    switch(ch) {

      case '0'...'9':

        v = v * 10 + ch - '0';

        break;

      case 's':

        servo1.write(v);

        v = 0;

        break;

      case 'w':

        servo2.write(v);

        v = 0;

        break;

      case 'd':

        servo2.detach();

        break;

      case 'a':

        servo2.attach(15);

        break;

    }

  }

  

}  

Program for the Processing Environment

import SimpleOpenNI.*;

import processing.serial.*;

SimpleOpenNI kinect;

Serial port;

        

float spos=90;

float currentX;

float lastX;

float currentY;

float lastY;

int x;

int y;

float interpolatedX;

float interpolatedY;

ArrayList<PVector> handPositions;

PVector currentHand;

PVector previousHand;

void setup(){

  size (640,480);

  println(Serial.list());

  port = new Serial(this, Serial.list()[0], 19200);

  kinect= new SimpleOpenNI(this);

  kinect.setMirror(true);

  kinect.enableDepth();

  kinect.enableGesture();

  kinect.enableHands();

  kinect.addGesture("RaiseHand");

  handPositions = new ArrayList();

  

}

void draw(){

  kinect.update();

  image(kinect.depthImage(),0,0);

  for (int i=1;i<handPositions.size();i++){

    currentHand=handPositions.get(i);

    previousHand=handPositions.get(i-1);

    

    

    currentX=(currentHand.x);

    lastX=(previousHand.x);    

    currentY=(currentHand.y);

    lastY=(previousHand.y);

         

    float interpolatedX = lerp(lastX,currentX,0.3f);

    lastX = int(interpolatedX);

    float interpolatedY = lerp(lastY,currentY,0.3f);

    lastY = int(interpolatedY);

    x= int(lastX);

    y= int(lastY);

    println(x);

    

    fill(255,0,0);

    ellipse(lastX,lastY,15,15);

    //line(interpolatedX,interpolatedY,15,15);

    

   

   

    spos= x/4; 

     port.write("s"+spos); 

      } 

      

    }

        

    void onCreateHands(int handId, PVector position, float time){

      kinect.convertRealWorldToProjective(position,position);

      handPositions.add(position);

    }

    

    void onUpdateHands(int handId, PVector position, float time){

      kinect.convertRealWorldToProjective(position,position);

      handPositions.add(position);

    }

    

    void onDestroyHands(int handId, float time) {

      handPositions.clear();

      kinect.addGesture("RaiseHand");

    }

    

    void onRecognizeGesture(String strGesture, PVector idPosition, PVector endPosition) {

      kinect.startTrackingHands(endPosition);

      kinect.removeGesture("RaiseHand");

   }