Digital Code Lock

(3 customer reviews)


SKU: IQ-56 Category:

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Digital Code Lock 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. In case there are 3 unsuccessful attempts to access the system, the system will automatically call a predefined mobile number.

The input is taken from a 4×3 Keypad (please see the schematic for more information) and Display the user input on a 2×16 LCD. A pin is assigned as output for activating and deactivating the lock. For demonstration i have connected a relay driver circuit to that pin. If your password is wrong then system will call at your mobile phone.

From user side:
The user has two options either he/she can use its own 5 digit code or use the default 5 digit code. If user has to do setup his own code, then he has to enter “12345″ and press ‘#’. After this.. controller will ask for 10 Digit master password which is preprogrammed in the controller. Entering master lock, user can enter the new 5 digit code for the lock and press ‘#’ to save it.

Using the Keypad:
Keypad has 12 keys (4×3) starting from 1,2,3,4,5,6,7,8,9,*,0,# (please see the schematic for layout). Numeric keys are used for entering numbers. ‘*’ is used as the Cancel key and ‘#’ is used as the Enter key.

Additional information

Weight N/A
Project kit

Professional, Assembled, Combo, Learning

3 reviews for Digital Code Lock

  1. hamza

    please send me file report

  2. jide

    pls what are the values of the three resistor connected to the keypad


      each of them are of 10K Ohm resistor.

  3. Adittya

    well working good project

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