In this article, you will learn how to use an Arduino board and a button to control an LED. The article provides a step-by-step guide to setting up the circuit and programming the board using the Arduino IDE. The code example demonstrates how to turn on the LED when the button is pressed and turn it off when the button is released, using the digitalRead() and digitalWrite() functions. The article also includes ideas for customizing and expanding the circuit to create more advanced projects. By following the instructions in this guide, you can learn the basics of electronics and programming and create your own interactive projects.