title: ACR122 - Card Emulation
body: <p>How can I get the NFC contactless reader ACR122U to behave as a tag (card emulation mode)?
  The prospectus claims that the device can do card emulation, but the SDK does not seem to provide an example or documentation for this feature.</p>
  
  <p>Does anybody know how to do this?
  Is there additional software required?
  Please note that my target platform is MS Windows.</p>
  
  <p>Thanks in advance</p>