Credit Card VI

[Scott Barnhill]

I am trying to create a vi that acts like a credit card scanner similar to
the ones in Wal-Mart or other stores. I am new to labview and could use
some direction. Can anyone help? Tim Scott

[JeanPierre]

Use VISA, of course! ¦¬)


Seriously, buy a card reader. These devices must have an interface of some kind (serial, USB, etc.) that you'll can program with LabVIEW I/O functions. If the device, has a well done driver, then using the device might be as simple as calling a DLL or an ActiveX component.

We can't help you much more if you don't provide more information about the interface of the device.

[Ben]

Yes please provide more info on your interface and the device.

Last I looked credit cards had 7 tracks of NRZ encoded data. Your name should be in track 3. There is a CRC check at the end of each track.

Well at least that how it was encoded 20 years ago.

Ben