arduino door lock project

Using Arduino Project Guidance
1

sir good day... sir i'm planning to make a door lock using arduino: its main components are arduino UNO, keypad, LCD module, solenoid door lock and buzzer.
process: LCD printout what's the password, then using keypad when the pressed keypad key is equal to the password the solenoid will triggered therefore the door will be unlocked. but when the pressed keypad key is not equal to the password the LCD will printout

invalid password
what's the password

when the pressed keypad key is incorrect for 3 time the buzzer will be turn on and it will alarm for 30 seconds and the LCD will printout the countdown of 30 seconds. after that the LCD printout again "what's the password"

sir please help me in making the program of my project.

thanks a lot XD XD XD

2

What do you know about Arduino so far?- both on the prgramming and hardware side.

3

I may be wrong, but it sounds like you need to start at the beginning.
Go through the example code that ships with the IDE.
When you have mastered the elements covered by them you should be able to come up with a design for your project.

There are a fare amount to tutorials out there that you should familiar yourself with like:

AND

etc.