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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Numeric keys are used for entering numbers. 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 Note: Want to build your own robot?

Microcontroller Based Digital code Lock (AT89C)

This location is incremented successively using INC R1 — command of Tue Nov 06 Now suppose we give below data cove column pins:. Sir iam unable to run the code lock. You may read the tutorial on keypad to — interfacing to learn more about the programming. The pressed key is identified and is assigned a decimal equivalent value ASCII value of the pressed key. Interface GPS with Arduino.


Post in forum for further questions. The keypad is scanned for pressed digits one by one. Mon Dec 03 A 4×3 matrix keypad and a 16×2 LCD have been used here.

Click here to cancel reply. Downloads Automatic Railway Gate Control by: Thu Dec 13 Email will not be published required. Security is a major concern in our day to day life, and digital locks have become an important part of these security systems. Here we are going to explain row scanning: So likewise keys in column C3 and C4 can also be tracked by making them 0, at a time.

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These address locations are accessed using register R1 via indirect addressing method. Electronic Identification and Personal Information card using Microcontroller.

Digital Door Lock-Password Security Code Lock using

Now if we want to track the keys in other columns like in digjtal 2then we need to change the data at columns pins:. Sun Dec 30 Electronic Lock using Switches. Numeric keys are used for entering numbers. Sat Dec 15 Posted By sifirsekiz Sat Dec 15 Huge Large Normal Small. Srikar, code is provided in the zip file. DELAY2 is a 2. Choosing Motor For Robots. Can u send me the whole working of main circuit diagram Olck need urgent I need to have a servo motor that use for my lock.


Electronic code lock with user defined password using microcontroller AT89C Sun Nov 04 Anujhsr Sun Oct 21 Sir iam unable to run the code in proteus SPI Module of Arduino. Retrieve Password Enter your email and to receive instructions Verification Image: This project source code is written in C.

Digital Code lock with LCD and Keypad using AT89C2051

If you have any doubts,please ask in comments section. Virgin Galactic — Commercial Space Flight.

Port P0 is used to take input from keypad. Fri Dec 21 You may also like: A 16×2 LCD display is very basic module and is very commonly used in various devices and circuits.