Hello all! I bought this reader because of how compact it is and easy to use, especially because SparkFun has the USB shield (SEN-09963). I have it connected to an ATMega32 via FTDI's VDIP2 USB module and displays the data on a 2x16 LCD. The reader works great with the cards (RTL-11506) from SparkFun but I am not able to read EM4100 cards. The specific EM4100 card that I am using is "Item code 32399" from Parallax. I noticed a couple of posts that said they were able to. Is there something I am missing?
Thanks