Arduino Nano ESP32 How to Blink an LED Using Visuino Visual Programming
2025-07-17 | By Ron Cutts
License: General Public License LED / Display Drivers LED Matrix LED Strips Signal Generator Arduino
Learn how to program an Arduino Nano ESP32 board to blink the built-in LED using Visuino.
Watch the Video!
Step 1: What You Will Need
Visuino program: Download Visuino
Step 2: Start Visuino, and Select the Arduino Nano ESP32 Board Type
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 Nano ESP32" as shown in Picture 2
Step 3: In Visuino, Add & Connect Components
Add "Pulse Generator" component
Connect "PulseGenerator1" pin [Out] to Arduino Nano ESP32 > Digital pin [13]
If you want to increase the speed of the blinking, select "PulseGenerator1" and in the properties window, change the "Frequency" value
Step 4: Generate, Compile, and Upload the Project
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 5: Play
After uploading the project to the Arduino Nano ESP32 board, the internal LED will blink.
Congratulations! You have completed your LED project with Visuino. Also attached is the Visuino project that I created for this Tutorial. You can download and open it in Visuino: https://www.visuino.com
Download Visuino file: Arduino Nano ESP32-LED-blink.visuino