Arduino is an open-source electronics platform built around easy-to-use microcontroller boards and programming software. It is popular with students, makers, teachers, artists, and prototype builders.
What Arduino is used for
People use Arduino boards to read sensors, control LEDs, move motors, build robots, automate small tasks, log data, and create interactive projects. It is often used with a breadboard during early testing.
Arduino and microcontrollers
An Arduino board contains a microcontroller plus supporting parts that make it easier to connect, power, and program. The platform lowers the entry barrier to embedded electronics.
Arduino is not one single board only. It is a family of boards, tools, code examples, and community knowledge.