Can anyone give me some basic operation of smart cards and how I can use them in a data logger?
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Thanks, but my data loggers only needs 8k of storage.
I can get smart cards with microchips a dime a dozen from everywhere, getting the plastic cards with only EEPROM is much much harder, At least Im having no luck. mANY of these simpler cards can easily be written and read by I2C.
So I2C will keep trying. Some of these cards come with 64k memory. Not sure who makes them.
If I did go the Smart card way with the microproccessor on the card, as I have only programmed picaxe basic and basic stamp, newver a pic I dont know where or how to vstart or what programmers id need ? There is no advantage in using a processor onn my cards. Except bvthe cards that come with processors are cheaper and available everywhere, not bvlike the head ache ive been having trying to vbuy the srtaight E2prom cards.
mike.
The eeprom on a smartcard most of the times is accessible to the smartcard only but some suppliers might offer a smartcard where they are directly connected to the gold-plated connections.
Programming a microchip pic is not very difficult as you can program it in a variety of languages such as assembly & C but also basic.
E.G. take a look at
http://www.picbasic.org/pr
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by: akosterPosted on 2009-09-25 at 07:22:17ID: 25423244
A smartcard is a piece of plastic with a small eeprom and / or microcontroller (such as Microchip or AVR). The operations you can perform with the smartcard are determined by the program of the microcontroller and the receiver hardware & software.
in general smartcards are used for identification / authorisation, e.g. to determine the bank account involved in an ATM transaction, the subscriber number for digital TV receivers (DVB) or the telephone IMEI number (sim card).
there are smartcards with EEPROM storage available (a few kb) but in general you will not be able to store much data on it.