4x3 keypad driver - 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, 05:30 pm

Post A Question

Share A Project

Downloads

Automatic Railway Gate Control by: Sharanjit Singh in: 8051 Projects
Tue Oct 15 2019, 12:47 pm
Yet Another DTMF Controlled Robot by: Er. Sharanjit Singh in: 8051 Projects
Tue May 07 2019, 02:45 pm
Simple 3 Digit Temperature Meter by: Rakesh Suthar in: PIC Projects
Sat Jul 05 2014, 11:45 am
Electronic Voting machine with Managed Control Unit (Project Report Included) by: Shivani, Geetika Gupta, Vibhore Aggarwal, Megha Singh in: 8051 Projects
Sat May 17 2014, 07:46 pm
LED Scrolling message Display using 8051 by: Pratik Suthar in: 8051 Projects
Thu May 08 2014, 04:28 pm

Comments

Pure Sine Wave Inverter Using Atmel 89S2051 by: HeidiFlolo

Mon Oct 31 2022, 10:45 am
Automatic College Bell (AT89S8252 & DS1307) by: maba77

Tue Oct 18 2022, 09:29 am
Pure Sine Wave Inverter Using Atmel 89S2051 by: JamesTog

Tue Jun 28 2022, 07:32 am
Digital Code lock with LCD and Keypad using AT89C2051 by: kipiki

Tue Oct 05 2021, 06:27 am
Accident alert and vehicle tracking system by: ExperimenterUK

Thu Sep 23 2021, 07:17 am

Billytesee

Sat Mar 25 2023, 11:19 pm

imobiliare

Sat Mar 25 2023, 09:02 pm

StevCXenlam

Sat Mar 25 2023, 02:32 pm

JacobRes

Sat Mar 25 2023, 01:26 pm

JulioTuh

Sat Mar 25 2023, 01:15 pm

Gustavotot

Sat Mar 25 2023, 10:04 am

ZarinPex

Sat Mar 25 2023, 07:33 am

GarryVency

Sat Mar 25 2023, 01:19 am