A working keyboard lock!
We are not going to tell you the password, but we'll give you a hint: A _ _ _ I T _ b l e
We based this off of the lock by jbox1.
You can then change the code by using the ROM table.
An improvement on my previous design of a rolling 16-Segment display, this time using RAM to store undisplayed letters. Note that a space will automatically be placed before your message each time. (If you see how I could prevent this, please let me know.)