Original Arduino Uno R3 microcontroller development board

The Original Arduino Uno R3 is one of the most popular and beginner-friendly microcontroller development boards, widely used in electronics, robotics, and IoT projects. Powered by the ATmega328P microcontroller, it offers a perfect balance of performance, simplicity, and flexibility for students, hobbyists, and professionals.

This board features 14 digital input/output pins (including 6 PWM outputs), 6 analog input pins, a 16 MHz crystal oscillator, USB connectivity, power jack, ICSP header, and reset button. It can be powered via USB or an external power supply, making it suitable for both desktop development and standalone embedded applications.

The Arduino Uno R3 is fully compatible with the Arduino IDE, supports a vast library ecosystem, and works seamlessly with sensors, motors, displays, Wi-Fi modules, Bluetooth modules, and more. Whether you are building a robot, home automation system, or learning embedded programming, this board is a reliable foundation for countless projects.