KEYPAD SECURITY USING ARDUINO

Hey all,

Did anyone ever successfully do a keypad security using the arduino. I have an arduino Duemilanove which i would like to use along with a keypad that i guess i will purchase, to create a security system...
Thanks in advance for any suggestions, source codes or thread links.
PS: does anyone suggest any keypad in particular?

regards
babykwes

Try to check this article from the playground:

http://www.arduino.cc/playground/Main/KeypadTutorial