title: How to connect weight scale machine to a webpage?
body: <p>i have build a web application to calculate weight of product,
  the application is build using "php, javascript &amp; ajax" and it run in xampp server, now my client want me to attach the weight scale machine to the application so that the weight of the product would directly inserted in the appplication. 
  plzz tell me what should is do? 
  guide me with some codes or any third party software.
  i just want the weight to be displayed on my web page.</p>