Nah nah nah. Like, don't require the entry pad at all.
It's just something resident in the background.. and don't require a reset, have it autoreset..
like on scene 2 password is 6155
if you put in 16155 it doesn't work. If you the password feature itself is secret, then it's hard to enter in the right password.
I'm almost done with this project I'm working on .. I'll code this up and show you and work on the enhanced security feature too.