Keypad Locking System with User Defined Password - 0 views
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manisha jain on 28 Mar 14In this keypad lock project I have used the AT89S52 microcontroller, one of the series of 8051 microcontroller by ATMEL corp. Here I'm using 4X4 keypad to take input from the user (to enter password) and display the corresponding results on a 16X2 LCD.