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POSMART-CARD reader/writer for Arduino
 

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    <p>I'm looking to build the same interaction that a normal user has with a vending machine through a chip card (smartcard) with an Arduino project of mine. I want to limit the users the time they can play with the toy (my project) for that, they will be required to insert the card and the code should:</p> <ol> <li>Read the card.</li> <li>Ask for a 4-digit password.</li> <li>Authenticate password on chip.</li> <li>Read time balance.</li> <li>Display on LCD the time balance.</li> <li>Save time of usage (via millis()).</li> <li>Subtract usage from time balance and display new balance.</li> <li>Log the usage time and date.</li> </ol> <p>I have one of this <a href="http://uk.farnell.com/amphenol/c702-10m008-232-40/smart-card-c702-wiping-xxs-3mm/dp/1849552">SMART CARD readers</a> and datasheet is very straight forward on how to connect, but I'm not as fluent as I would like on writing my own functions. Is there a good library that I can use? perhaps an example .ino or .pde file? thanks in advance!</p> <hr> <p>[UPDATE #1]</p> <p>I have found a good looking project by Angus71 in <a href="https://sourceforge.net/p/arduinosclib/wiki/Home/">SourceForge</a> but I must admit that I don't know how to implement the library into the arduino code itself. The author wrote SCTest (example) that is not enough for me, So I wanted to check if you can help me?</p> <p>You may download the library and examples from the link above and would appreciate very much if you can point me in a better direction!</p>
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    1. USGustavo Valencia
    1. USGustavo Valencia
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    1. CONote, that memory cards (which would suffice and may be easier to interface) and smart cards have a limit of writing cycles in the 100 000 range, so you may want to restrict the update frequency. As I read your given link, it is not exactly a reader you use but more a contacting unit, which means you have to implement the communication protocol to the chip. For smart cards the protocol is asynchronous (i.e. complicated, many special cases) and called T=1 or T=0 (no google hits with arduino). Memory chips like 5528 are synchronous (2wire, 3wire, i2c )which is surely less work from scratch.
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      1. USguidot
    2. COhttp://www.makomk.com/2011/02/25/iso-7816-smartcard-interface-for-arduino/ is at least a starting point
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    3. COThanks guidot, I saw the blog you shared before, but the code has a lot of undeclared and functions and it kind of freaked me out.
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