title: How to read from a usb rfid reader?
body: <p>I have bought a usb rfid reader. How can I read data when user puts an rfid tag in front of the device?</p>
  
  <p>my computer identifies the device as an Human Interface Device.
  If it identified it as an com device it was much easier to read from the device with serialPort object but I dont know how to read from a usb device. </p>
  
  <p>Any help? </p>