Aim
The goal of this activity is to demonstrate the use of PWM signal of an Arduino board. This PWM signal allows gradual increase or decrease of power supply to the LED.
Materials Required
1. Arduino UNO R3 – 1
2. USB Cable – 1
3. Breadboard – 1
4. LED – 1
5. 220Ω Resistors – 1
6. Several Jumper Wires
Wiring Diagram
Desired Outcome
The LED will switch on and it will gradually brighten to a high and slowly fade to a low.
