Control LED Blinking Pulses With a Potentiometer

In this tutorial we will learn how to control the LED Blinking pulses with a potentiometer.

Watch a demonstration video.

Step 1: What You Will Need

• 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 [7]
• Connect LED positive pin to Arduino pin [GND]

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

The Visuino: https://www.visuino.eu also needs to be installed. Download Free version or register for a Free Trial.

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 ADD & Connect Components

• Add “Pulse Generator” component
  In the properties window select “Frequency” and click on the pin icon and select “Float SinkPin”
• Add “Multiply Analog By Value” component and in the properties window set “Value” to 10
• Connect Arduino AnalogIn [0] to “MultiplyByValue1” pin[In]
• Connect “MultiplyByValue1” pin [Out] to “PulseGenerator1” pin[Frequency]
• Connect “PulseGenerator1” pin[Out] to Arduino digital pin[7]

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

In Visuino, at the bottom click on the “Build” Tab, make sure the correct port is selected, then click on the “Compile/Build and Upload” button.

Step 6: Play