Need suggestion in developing an electric password module

AI Thread Summary
The discussion focuses on developing an electric password box that activates a relay to unlock a door when the correct password is entered through push buttons. The user seeks suggestions for building this system and has found various circuit designs online, including a specific example from a website. The emphasis is on finding a suitable keypad door lock circuit to implement the project effectively. The goal is to integrate the relay with motors to facilitate electronic door opening. Overall, the conversation highlights the need for practical circuit solutions for a secure home access system.
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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.
 
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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
 
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