Flowing LEDs

Aim

The goal of this activity is to connect multiple LEDs and make them all switch on and off in a certain pattern.

Materials Required

1. Arduino UNO R3 – 1
2. USB Cable – 1
3. Breadboard – 1
4. LEDs – 4
5. 220Ω Resistors – 4
6. Several Jumper Wires

Wiring Diagram

Desired Outcome

The four LEDs will be switched on and off in a series. This will continue as long as the Arduino is connected to a power supply or to the computer.