read digital data stream from RFID reader, convert/compare to hexadecimal string

[wilfredbox]

Howdy, I am an aggie. I would like to acquire/process digital data stream from an RFID reader with a serial RS-232 adapter, by reading/writing to a COM port (9600 baud, 8 data bits, 1 stop bit, and no flow control).

The RFID reader is supposed to read a 12 byte tag ID. The idea of this whole LabView program is to read the tag, compare its ID to predefined IDs in the program, and either light an LED when there is a match or actuate a system.

I don't have a clue of what to do about the data acquisition part. Please Help.

Gig 'Em

[Albert.Geven]

Hi

First of all post the name and model number of the rfid tag reader, because that is the instrument you are communicating with and each and everyone has a protocol.

[Burban]

wilfredbox,

You will be using NI-VISA to control your instrument either through an instrument driver or VISA calls.  As mentioned above, check both ni.com/idnet and with the manufactuer to see if there is an instrument driver available.  This instrument driver will make programming the RFID reader easier and also may include examples.

I am closing the duplicate request you created via email and will be monitoring and posting here.  In the future, please do not create duplicate requests.

Regards,

[wilfredbox]

It is a TagSense Nano-UHF RFID Reader from TagSense, Inc

[Burban]

The manual for the reader mentions an RS-232 interface for the reader.  This would be the easiest way of communicating with the device as you could connect it to the serial port on your computer.  There is no instrument driver that I can find, so you will need to program the device using VISA and the commands in the user manual.