Steve posted:
It DEPENDS on what you want to do. Are these JUST for initialisation ? Do they need to be tested during the operation of the equipment.

How fast does the apparatus have to act on the change in switch state ? How many buttons are there ? Are you going to debounce them in software or hardware ?

And answers poured in, but not from Wong.

why do you keep guessing when the question to take the guess out has been posted

Erik