Need suggestion in developing an electric password module

[I_am_learning]

I am trying to build an electric password box that will trigger a relay when correct order of password is pressed (via push buttons). I am going to use the relay to open the main door of my home electrically (via motors). So if you have any suggestion for the password box, it will be of great help to me.

 

[vk6kro]

I fed this into Google:
keypad door lock circuit
and got lots of circuits for doing this. Try it and pick something suitable.

This was one of them:
http://uk.geocities.com/ronj_1217/edr.html

 

[oswaler]

There are a few suggestions I have for developing an electric password module for your project.
Firstly, ensure that your password box has a secure and tamper-proof design to prevent unauthorized access. This could include using a sturdy and durable material for the box and implementing measures such as encryption for the password.

Secondly, consider using a microcontroller or Arduino board to control the password input and relay triggering. This will allow for more flexibility in programming and customizing your password system.

Additionally, you may want to incorporate a timeout feature where the password input is disabled after a certain number of incorrect attempts. This can help prevent brute force attacks on your system.

Another suggestion is to add a backup power source, such as a battery, in case of a power outage. This will ensure that your password system is always operational.

Finally, it may be beneficial to consult with a security expert or seek advice from online forums and communities for additional tips and ideas for your electric password module. Good luck with your project!