Digital Code lock with LCD and Keypad using AT89C2051

Project tested and working perfectly

Digital Code Lock with LCD and Keypad using AT89C2051

A Brief Description:
This project is written in C language. Its a simple project with efficient hacking prevention from Brute Force etc. The basic user lock is of 5 Digits and Master Lock is of 10 digits so its not easy for an intruder to break the lock unless you keep the code simple.
The input is taken from a 4x3 Keypad (please see the schematic... Read Compelte post
Author: Ajay Bhargav | Date added: Wed Aug 29 2007, 05:08 pm

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