Draw a state machine diagram of an elevator.

-There are ten floors, basement and floors 1-9.

- Each floor will have an up and down button, except for floor 9 and basement.

-The elevator will have buttons for all ten floors on the interior control panel.

Here is an example some signals needed.

DoorClosed - a 1-bit signal 0- closed, 1-open

MotorOn000 Off, 001 = Down. 010 = Up.