Secure Entry Access Control
I am working on an access system, multi-user code for entry to restricted areas. I designed one that uses purely hardware but its a bit complicated and bulky, though it works perfectly.
Post by RT
These days smart card technologies are used for access system in most places. It uses a RF card the size of a Credit card with a microcontroller embedded in it. and you need a smart card reader that needs to be networked or interfaced with PC. philips, atmel, maxim, fujitsu and many more sources for kits, products and parts. many embedded 80C51 family type solutions were there when it all started. see here first
hut.fi/Misc/Electronics/smartcards.html
check these links
atmel.com/products/SecureRF/
atmel.com/products/SCR/
maxim-ic.com/evkit.cfm/pline_id/All
webopedia.com/TERM/s/smart_card.html
unix.be.eu.org/docs/smart-card-developer-kit/ewtoc.html
java.sun.com/products/javacard/smartcards.html
tdksemiconductor.com/products/......
fujitsu.com.....
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