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 Aug 05 2019, 08:09 PM

ExperimenterUK

@Ismail ..post in forum, give details

Mon Aug 05 2019, 05:33 PM

Ismail balghmi

Hello. Please I won't download

Wed Jul 24 2019, 01:47 AM

ExperimenterUK

@BUSTER123 Please post in the forum

Tue Jul 23 2019, 07:13 PM

BUSTER123

hello! newbie here. i am kind of a guy who hates using ready - made existing libraries, so this helped a lot as i was trying to control and write to a character lcd display. however, i can't figure out how to set the cursor position. for example, i want to set it to the 5th column in the first row, so position 5. so according to the table, i am sending 10000101 on the 8 data lines of the lcd (register select pulled low). the cursor does not move there however. and i cant move the cursor left or right too. is it something wrong that i am doing? thank you.

Thu Jul 11 2019, 08:55 PM

ExperimenterUK

@ramos https://www.theengineeringprojects.com/2017/09/l298-motor-driver-library-proteus.html

Thu Jul 11 2019, 08:44 PM

ExperimenterUK

@praveen123. Can you give a link to the project ?