Arduino PWM Signal on Oscilloscope

In this Simple Tutorial we will learn how to make a Pulse Width Modulation (PWM) using Arduino and observe the Signal on the Oscilloscope.

Watch the Video!

Step 1: What You Will Need

For this project you will need a :

• Potentiometer,
• some Oscilloscope in our case it is DSO 138
• Jumper wires
• Arduino
• Visuino program: Download Visuino

Step 2: The Circuit

• Connect potentiometer pin [DTA] to arduino analog pin [A0]
• Connect potentiometer pin [VCC] to arduino pin [5V]
• Connect potentiometer pin [GND] to arduino pin [GND]
• Connect Oscilloscope Signal pin to Arduino digital pin [10]
• Connect Oscilloscope pin [GND] 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

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

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

If you power the Arduino module and change the potentiometer the Oscilloscope will show the PWM (Pulse Width Modulation) Signal.

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