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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This project is written in C language. We have used a usint password in the program, this password can be defined by the user in the code below. This Code is only visible to Registered users. Hence there will be no change, it means microcontroller understands that nothing has been pressed in column one. LCD Liquid Crystal Display screen is an electronic display module and find a wide range of applications.

Digital Code lock using AT89C2051

Just keep the same port pins. 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. The keypad is scanned for pressed digits one by one. 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 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.


Digital Code lock with LCD and Keypad using AT89C2051

So likewise keys in column C3 and C4 can also be tracked by making them 0, at a time. Keypad is used for inserting password into the microcontroller. Electronic Identification and Personal Information card using Microcontroller. Numeric keys are used for entering numbers.

Should I just be burning the main.

Digital Code Lock Project using Microcontroller

Also an output pin is made high to be used for further purpose. This Digital Door Lock — is simply a password based electronic code lock designed using micro controller, a keypad and a 12 volt dc relay. This high-density System-in-Package SiP integrates controller, power switches, and support components. Numeric keys are used for entering numbers.

Uslng the circuit as shown in diagram. You can easily find them in Code. H – LCD function prototypes and other declerations Lock.

Lockk there, This is an interesting project. So in this step controller only waits for keys in column one: Skip to main content. Mon Nov 12 Parambir, Harman, Pragati, shikha, Manpreet in: There is no source of 5 v in circuit For vcc.

I want to register. The password checking subroutine will compare digial entered digit — one by one and if all the 5 digits are entered correctly i.


Tue Nov 06 Please can someone help me with assembly language code for door lock password system. Fri Dec 21 Heart rate monitor with sms alert. This location is incremented successively using INC R1 — command of This password is stored in the system. I need to have a servo motor that use for my lock. Electronic Code Lock Circuit. And data pin D4-D7 is connected to pins P1. Leave a Reply Cancel reply Your email address will not be published.

Huge Large Normal Small. Choosing Qt89c2051 For Robots.

DELAY2 is a 2. In the example program given below, we use password and is stored in program memory location with label — PASSW. The password is entered by making use of a keypad. How can i generate the assembly language code of the code above given and using which software?

Long duration timer circuit. Now if we want to track the keys in other columns like in col 2then we need to change the data at columns pins:. And one buzzer is connected at pin P2. Thu Dec 13 The 8 data lines are connected to Port 0 of My project is like a vault. Free email signup Get latest projects, articles in your mail box, subscribe to electrifriends Email: I forgot my password. Posted By sifirsekiz Wed Dec 19