Fun card

Posted on Feb 5, 2014

One of those smart cards that are often used for illegal viewing of encrypted video signals. It contains an Atmel AT90S8515A processor and an 8k EEPROM memory AT24C64, which gives the card adequate processing power for numerous other purposes. Other card types exist, with different processors and EEPROM sizes. I intend to put my card to a better use one day

Fun card
Click here to download the full size of the above Circuit.

(hopefully). It may well run a tiny TCP/IP stack which in turn will make it possible to create a small web server with it. The diagram above is the circuitry that`s embedded in the smart card. A total of 3 I/O lines are accessible from the outside and can be used for all sorts of activities. To make a web server on this card we need at least 2 lines for serial communication to a router that accepts the SLIP protocol. This leaves us with one I/O line to play with. This I/O line can be used to interface with a digital thermometer from Dallas Semiconductors, or to connect to a hit counter, or simply an activity LED.

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