It is a mystery box you should Enter correct password to open then box. but if you try to open the box without entering the right password the buzzer will be ON.
This text on top side is a riddle that no one - except me - can solve, so if I forget the password, I can easily figure it out :))
While door is locked--> LCD display "Enter Correct Password"
and servo on locked position
While door is locked--> LCD display "Hello Thomas"
and servo on unlocked position