This project is taken from the book "Arduino Projects Book" of the Starter Kit. It demonstrates the components in series.

The two switches are in series. This means that the same electrical current flows through both of them, so that they both have to be pressed for the LED to light up. Arduino is just the power source for this circuit.

 

Components Required:

Arduin

Breadboard

Push Buttons

LED

Resistor

Jumper Wires