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Electronic code lock with user defined password using microcontroller The major components include a keypad, LCD and the controller AT89C51 which . Here is a project called ‘Digital Code Lock using AT89C’. LCD is used for display and a keyboard is used to input the keys. This project source code is. Microcontroller Based Digital code Lock (AT89C) Security is a prime concern in our day-today life. Everyone wants to be as much secure as possible.

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Keypad Interfacing with Also an output pin is made high to be used for further purpose.

Digital Code Lock Project using Microcontroller

So our digital door lock project can be called with a very wide range of names like a digital combination lock using or a digital security code lock using microcontroller or a password security system using or an electronic code lock or a digital code lock using And data pin D4-D7 is connected to pins P1. Whether the resistors and capacitors would be available in the development board? After codf four digits are core, they are compared with the pre-set password. A push button switch or any kind of mechanical switch has bouncing effect.


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Microcontroller Based Digital code Lock (AT89C)

Read our tutorial on interfacing LCD to — to learn how to connect LCD module to properly and also to learn how to display text messages on the LCD module perfectly. This project source code is written in C.

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Digital Code lock with LCD and Keypad using AT89C2051

So in this step controller only waits for keys in column one: Digital Code Lock -Advanced -using Arduino — is a very interesting and advanced version of Digital Code Lock projects built using keypad and arduino. Mon Nov 05 Recent Downloads Comments Members.

The program is written in assembly language. Port P0 is used to take input from keypad. Leave a Reply Cancel reply Your email address will not be published.

Row pins are connected from P3. Working of the Project Objective of the Digital Door Lock project is to allow access to people who input the 5 digit password correctly and to not allow access to people who input password wrongly. Code is written for Keil.


Just keep the same port pins. This effect has to be nullified either with a capacitor or with some tweaks inside software — for example dgital a 1 or 2 seconds delay after a key press is scanned. LCD Liquid Crystal Display screen is an electronic display module and find a wide range of applications.

Digital Code lock using AT89C2051

Rickey’s World Toggle sidebar Login Toggle sidebar. Now suppose we give below data to column pins: Electronic Code Lock Circuit. The major components include a keypadLCD and the controller AT89C51 which belongs to the series of microcontrollers.

DELAY2 is a 2. Downloads Automatic Railway Gate Control by: An electronic lock usint digital lock is a device which has an electronic control assembly attached to it. There is no source of 5 v in circuit For vcc. The resistance is varied by What are the other files for?

Check this article for LCD interfacing with and its functions. Arduino based GPS receiver.