Step 1: What You Will Need
Step 2: The Circuit
Step 3: Start Visuino, and Select the Arduino UNO Board Type
Step 4: In Visuino Connect Components
Step 5: Generate, Compile, and Upload the Arduino Code
Step 6: Play

Published January 19, 2020 © LGPL

Controlling LED Brightness With a Potentiometer and Arduino

In this tutorial we will learn how to control the LED brightness with a potentiometer and Arduino.

BeginnerProtip1 hour2,212

Controlling LED Brightness With a Potentiometer and Arduino

Things used in this project

Hardware components

Arduino UNO

Potentiometer, Slide

DIYables Potentiometer

Alternative

DIYables USB Cable 2.0 Type A/B for Arduino Uno

DIYables Jumper Wires

DIYables Breadboard

DIYables LED

DIYables Starter Kit

Optional, all in one

Software apps and online services

Arduino IDE

visuino

Story

In this tutorial we will learn how to control the LED brightness with a potentiometer and Arduino.

Watch a demonstration video.

Step 1: What You Will Need

1 / 4

Arduino UNO (or any other Arduino)
LED
Potentiometer
Jumper wires
Visuino program: Download Visuino

Step 2: The Circuit

Connect potentiometer pin [DTB] to arduino analog pin [A0]
Connect potentiometer pin [VCC] to arduino pin [5V]
Connect potentiometer pin [GND] to arduino pin [GND]
Connect LED positive pin to Arduino digital pin [10]
Connect LED positive pin to Arduino pin [GND]

Step 3: Start Visuino, and Select the Arduino UNO Board Type

1 / 2

To start programming the Arduino, you will need to have the Arduino IDE installed from here: https://www.arduino.cc/.

Please be aware that there are some critical bugs in Arduino IDE 1.6.6. Make sure that you install 1.6.7 or higher, otherwise this tutorial will not work! If you have not done follow the steps in this tutorial to setup the Arduino IDE to program Arduino UNO! The Visuino: https://www.visuino.eu also needs to be installed. Start Visuino as shown in the first picture Click on the "Tools" button on the Arduino component (Picture 1) in Visuino When the dialog appears, select "Arduino UNO" as shown on Picture 2

Step 4: In Visuino Connect Components

Connect Arduino AnalogIn pin[Out] to Arduino Digital [10] pin - Analog (PWM)

Step 5: Generate, Compile, and Upload the Arduino Code

1 / 2

In Visuino, Press F9 or click on the button shown on Picture 1 to generate the Arduino code, and open the Arduino IDE

In the Arduino IDE, click on the Upload button, to compile and upload the code (Picture 2)

Step 6: Play

If you power the Arduino UNO module, and change the potentiometer position the LED will change its brightness.

Congratulations! You have completed your project with Visuino. Also attached is the Visuino project, that I created for this tutorial, you can download it here and open it in Visuino: https://www.visuino.eu

Code

potenciometer-led.visuino

{
  "Version": "2",
  "Product": "Visuino Pro - Visual Arduino Programming",
  "Units": [
    {
      "Type": "Diagram",
      "Name": "__OpenWireRootUnit__",
      "*": [
        {
          "X": 256,
          "Name": "Arduino",
          "Instance": {
            "Serial": {
              "*": [
                {
                  "+": "TArduinoHardwareSerial"
                }
              ]
            },
            "+": "TArduinoBoard",
            "AnalogInputReference": "Default",
            "Modules": {
              "*": [
                {
                  "+": "TArduinoEEPROMModule"
                },
                {
                  "+": "TArduinoProcessor328Module"
                },
                {
                  "+": "TArduinoWatchdogTimerModule"
                }
              ]
            },
            "I2CChannels": {
              "*": [
                {
                  "+": "TArduinoI2C"
                }
              ]
            },
            "Digital": {
              "*": [
                {
                  "+": "TArduinoAdditionalDigitalSerial0Channel"
                },
                {
                  "+": "TArduinoAdditionalDigitalSerial0Channel"
                },
                {
                  "+": "TArduinoAdditionalDigitalInterruptChannel"
                },
                {
                  "+": "TArduinoBasicDigitalPWMInterruptChannel"
                },
                {
                  "+": "TArduinoAdditionalDigitalChannel"
                },
                {
                  "+": "TArduinoBasicDigitalPWMChannel"
                },
                {
                  "+": "TArduinoBasicDigitalPWMChannel"
                },
                {
                  "+": "TArduinoAdditionalDigitalChannel"
                },
                {
                  "+": "TArduinoAdditionalDigitalChannel"
                },
                {
                  "+": "TArduinoBasicDigitalPWMChannel"
                },
                {
                  "AnalogInputPin": {
                    "SourcePin": {
                      "Name": "__OpenWireRootUnit__.Arduino.Digital.Digital[ 14 ]\/AnalogIn[ 0 ].OutputPin",
                      "ID": "__OpenWireRootUnit__.Arduino.Digital._Item14.OutputPin"
                    }
                  },
                  "+": "TArduinoBasicDigitalPWMChannel"
                },
                {
                  "+": "TArduinoBasicDigitalPWMSPI0Channel"
                },
                {
                  "+": "TArduinoAdditionalDigitalSPI0Channel"
                },
                {
                  "+": "TArduinoAdditionalDigitalSPI0Channel"
                },
                {
                  "OutputPin": {
                    "SinkPins": [
                      {
                        "Name": "__OpenWireRootUnit__.Arduino.Digital.Digital[ 10 ].AnalogInputPin",
                        "ID": "__OpenWireRootUnit__.Arduino.Digital._Item10.AnalogInputPin"
                      }
                    ]
                  },
                  "+": "TArduinoCombinedAnalogDigitalChannel"
                },
                {
                  "+": "TArduinoCombinedAnalogDigitalChannel"
                },
                {
                  "+": "TArduinoCombinedAnalogDigitalChannel"
                },
                {
                  "+": "TArduinoCombinedAnalogDigitalChannel"
                },
                {
                  "+": "TArduinoCombinedAnalogDigitalI2C0Channel"
                },
                {
                  "+": "TArduinoCombinedAnalogDigitalI2C0Channel"
                }
              ]
            },
            "SPIChannels": {
              "*": [
                {
                  "+": "TArduinoSPI"
                }
              ]
            },
            "BoardType": "Arduino Uno"
          },
          "Type": "Component",
          "Y": 256
        }
      ]
    }
  ],
  "Content": "OpenWire Diagram"
}

Credits

ronfrtek

280 projects • 67 followers

Arduino Fan!

Controlling LED Brightness With a Potentiometer and Arduino

Things used in this project

Hardware components

Software apps and online services

Story

Step 1: What You Will Need

Step 2: The Circuit

Step 3: Start Visuino, and Select the Arduino UNO Board Type

Step 4: In Visuino Connect Components

Step 5: Generate, Compile, and Upload the Arduino Code

Step 6: Play

Schematics

2020-01-13_9-53-51_d3gENN0OD4.jpg

Code

potenciometer-led.visuino

Credits

ronfrtek

Comments

Embed the widget on your own site

Controlling LED Brightness With a Potentiometer and Arduino

Controlling LED Brightness With a Potentiometer and Arduino

Things used in this project

Hardware components

Software apps and online services

Story

Step 1: What You Will Need

Step 2: The Circuit

Step 3: Start Visuino, and Select the Arduino UNO Board Type

Step 4: In Visuino Connect Components

Step 5: Generate, Compile, and Upload the Arduino Code

Step 6: Play

Schematics

2020-01-13_9-53-51_d3gENN0OD4.jpg

Code

potenciometer-led.visuino

Credits

ronfrtek

Comments

Related channels and tags