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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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. An electronic lock or digital lock is a device which has an electronic control assembly attached to it.

For row scanning we need to give data or signal to column pins and read that data or signal from row pin. Log in or register to post Comment.

Nothing is displayed on screen. LCD Liquid Crystal Display screen is an electronic display module and find a wide range of applications. Sun Dec 23 We hope you have understood the circuit, its working and the program really well.

Here we are using a 4×4 keypad which has 16 keys. Click here to cancel reply. Tue Dec 18 Thank you very much sir. This article describes the making of an electronic code lock using the microcontroller. And data pin D4-D7 is connected to pins P1. Security lcok a major concern in our day to day life, and digital locks have become an important part of these security systems.


Digital Door Lock-Password Security Code Lock using

This a simple project with efficient hacking prevention from Brute Force etc. Even now, there are Digital locks which can be operated using our smart phones, means no more need to keep different keys, just one smart phone can operate all the locks, this concept is based on Internet of Coee. Free email signup Get latest projects, articles in your mail box, subscribe to electrifriends Email: Heartbeat sensor with at89s Post in forum for further questions.

It’s Time to Welcome Gigapixel Cameras!! Fri Dec 21 Hi there, This is an interesting project. At98c2051 Dec 03 We have uslng a predefined password in the program, this password can be defined by the user in the code below.

Here we have used string. Should I just be burning the main.

Digital Code lock using AT89C |

Sun Nov 04 Recent Downloads Comments Members. This Digital Door Lock — is simply a password based electronic code lock designed using micro controller, a keypad and a 12 volt dc relay. Our Digital Code Lock project — is a simple electronic number lock system or an electronic combination lock using — which has a preset 5 digit password stored inside the program.


C – code for lock functioning LOCK. Port P0 is used to take input from keypad. Function for creating the coe of 1 second has been created, along with some LCD functions like for LCD initialization, printing the string, for commands etc.

Srikar, code is provided in the zip file. This project is written in C language. You may also like: Posted By sifirsekiz Fri Dec 14 First we have to define 8 pin for keypad module.

Digital Code lock using AT89C2051

If there is a mismatch between user input and stored password, access will be denied by not opening the closed door — that is by keeping the relay in OFF position.

Each digit loaded to accumulator is then compared with the corresponding digit stored as user input in address locations 16D to D by loading them one by one to register R1.

This high-density System-in-Package SiP integrates controller, power switches, and support components. A preset is a three legged electronic component which can be made to offer varying resistance in a circuit. Email Required; will not be displayed. Check here the detailed explanation: Rickey’s World Toggle sidebar Login Toggle sidebar.