C code program for a security system using password

[AhmedS]

hello

can u help me to write this code???


It is desired to implement a security system using password. Write a C code
program required for this system satisfying the following features:
a) The LCD asks the user to enter the password as shown.
b) If the password is correct, then the LCD writes "Correct Password" and the
LED will be on (connect the LCD on PORT D).
c) The user enters the password through a Keypad connected to PORT A. Build a
function called Key_Read( ) to detect the key press.
d) If the password is wrong then the LCD writes "Wrong Password, Try again !",
and the LED will be Off (connect the LED on PORT C).
e) The user can clear the LCD via the (#) button but the sentence "Enter
Password: " will be written again.:?::!::?::!:

 

[Los Frijoles]

hello

Why aren't you able to do this? Much of this can be accomplished using built in libraries of most compilers. Also, you forgot to mention which controller you are using.

 

[blueroomelectronics]

Re: hello

Why aren't you able to do this? Much of this can be accomplished using built in libraries of most compilers. Also, you forgot to mention which controller you are using.

Cause the OP wants us to do his homework assignment.

 

[embeddedlover]

Re: hello

No, he wanted to give members of this forum a small test

 

[the_merovingian]

Re: hello

Just in case you're thinking of using a PIC MCU, here's a starting point:

Keypad scanning: http://www.winpicprog.co.uk/pic_tutorial9.htm

Interfacing to LCD modules: http://www.winpicprog.co.uk/pic_tutorial3.htm

Examples are in assembler rather than C, but should help aid your understanding. But like the others implied, more details needed and you really should do your own homework