Arduino Tutorial - #4 Potentiometer

 #4 – Potentiometer
Using a potentiometer, you will be able to control the resistance of an LED. Turning the knob will increase and decrease the frequency of the LED blinks.

Parts Needed
(1) Arduino Uno
(1) USB A-to-B Cable
(1) Breadboard – Half Size
(1) LED 5mm
(1) 220 Ω Resistor
(1) Potentiometer (10k Trimpot)
(6) 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_04_Potentiometer

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 earlier section.

4. Click upload button to send sketch to the Arduino.

 

 

 

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