Arduino tutorial - #5 – Fade an LED

By using a PWM pin on the Arduino, you will be able to increase and decrease the

intensity of brightness of an LED.

Parts Needed
(1) Arduino Uno
(1) USB A-to-B Cable
(1) Breadboard – Half Size
(1) LED 5mm
(1) 220 Ω Resistor
(2) Jumper Wires

Before you can start working with Arduino, you need to make sure you have the Arduino IDE software installed on your computer.

This program allows you to write, view, and upload the code to your Arduino Uno board.

You can download the IDE for free on Arduino’s website.
Once the IDE is installed, you will need to connect your Arduino to your computer.

To do this, plug one end of the USB cable into the Arduino Uno and then the other end of the USB into your computer’s USB port.

Select The Board
Once the board is plugged in, you will need to open the IDE and click on Tools > Board > Arduino Uno to select the board.

             

 

Select Serial Port
Next, you have to tell the Arduino which port you are using on your computer.

To select the port, go to Tools > Port and then select the port that says, Arduino.

Project Diagram

 

Project Code
1. Connect the Arduino board to your computer using the USB cable.
2. Open project code – Circuit_05_Fade

Use the link below to download the zip folder containing the code.
Download Project Code

Once the file has been downloaded, you will need to unzip/extract the folder in order to use it.

3. Select the board and serial port as outlined in an earlier section.
4. Click the upload button to send the sketch to Arduino.

 

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