Parallax Smart Card Reader - Revisited
I believe I have mentioned that at some time, I was going to implement an Arduino Library for the Parallax Smart Card Reader. Well, that time is now. The library has support for the 3 smart cards that are also available from Parallax. The samples are equivalent to the stand-alone samples that have been available for quite some time now. The big difference is that using the 3 smart cards is now very similar. You initialize the cards with an Initialize() function, you read and write data to the cards with Read() and Write() functions. There is an Authenticate() function available for the IS23SC4442 card. The parameters are similar for each card (but they aren't always identical ... the IS24SC16A card requires a Page parameter, where the IS24SC02A doesn't, for example). Update : This library now has 3 additional functions for each card: WriteString(), ReadString() and ClearString() ... basically you can write a string at a location on a page of the memory (note,