Parallax Smart Card Reader Samples for Arduino
Note : There is a now an Arduino Library available for the Parallax Smart Card Reader, please see the new post in this blog. I ordered one of the Parallax Smart Card Readers as listed on the Parallax web site. I also went ahead and ordered one of each of the three (3) types of Smart Cards that Parallax provides for use with the reader to play around with ... and I believe I have code for the Arduino that works with each of the three types. Note : I did lock my first IS23SC4442 (32321) card while learning ... had to order more (this time I ordered a couple) ... but I did seem to get it working without locking a second one. And ... once you lock one, it can't be unlocked (at least not that I know of) ... but I do now have the ability to make sure the lock-check logic works and see that it is impossible to write to the card's memory when it is locked. The IS24C16A (32322) and IS24C02A (32323) don't have any type of protection built in where they could be l