at89c2051 based digital code lock - Rickey's World of Microcontrollers & Microprocessors

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. User has maximum of 3 retries.. if fails then Master Locks ha... Read Compelte post

Other Tags: AT89C2051 Projects 4x3 Keypad driver LCD 4-bit AT89C2051 based Digital code lock

Posted on Wed Aug 29 2007, 12:00 PM

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Mon Oct 22 2018, 05:37 AM

Iris Spain

aaa快乐是大家的aaa

Sat Sep 29 2018, 06:28 PM

Please post questions in the forum.

Sat Sep 29 2018, 11:26 AM

Ashfaq Ch

hi i have some AT89C51RC microcontrollers already programed. some one help us to how to download from AT89C51RC and after study and edit all corractions reload to AT89C51RC controller

Wed Sep 12 2018, 10:58 PM

hii!! some1 please let me know how i ll get rfid code to 8051 by WEIGAND mode

Tue Sep 11 2018, 08:09 PM

is there anyone here?

Mon Aug 27 2018, 07:30 AM

bun

Hello everyone！

Sat Jul 21 2018, 06:21 AM

Dibakar Bhanja Chowdhury

By using a 555 timer how can I expand the range of the mobile phone jammer? Please reply me asap

Sun May 20 2018, 10:01 AM

justinb

how to write and execute a program that read the keypad button and display the number on 7 segment on intel8051 at89s52 in assembly language?

Thu May 17 2018, 06:36 AM

HAMZA TAJ

sir iwant to ask about controller of three phase supply by using back to back thyristor instead of triac....will u give me some guideline?

Sat Apr 28 2018, 12:54 PM

ashutosh jain

IR Remote Switch using TV remote (RC5 Protocol) is not working properly. opp1 & opp2 is in problem.plz help

Downloads

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