Three switches in parallel
there are two common types of digital inputs: switches and pushbuttons. A switch is a mechanism that brings two pieces of metal together using some form of lever action. Think of everyday household light switches. A pushbutton brings two pieces of metal together when you push down on it. Think of elevator buttons.
Three switches in parallel. Any one of the three will turn on the LED.
My work
Three switches in series
Three switches in series.
All three must be on to turn on the LED.
(At first, I overlooked this instruction and pressed only one switch, but it didn't turn on, so I kept wandering around and realized that the lead only turned on after pressing three at once)
My work
Switching a motor