The Arduino UNO R3 is the most popular and beginner-friendly development board in the Arduino family, built around the ATmega328P microcontroller. It’s the perfect starting point for anyone looking to explore electronics, embedded systems, or IoT development.
With 14 digital I/O pins (6 PWM), 6 analog inputs, and built-in USB connectivity, the UNO R3 supports easy programming and seamless integration with sensors, modules, and shields. It works flawlessly with the Arduino IDE and comes with a bootloader pre-installed, so you can get started right out of the box.
Whether you’re building a robot, home automation system, weather station, or just learning how to code, the UNO R3 is the ideal platform for rapid prototyping and education.
Key Features:
✔️ Microcontroller: ATmega328P
✔️ 14 Digital I/O Pins (6 PWM), 6 Analog Inputs
✔️ Operating Voltage: 5V
✔️ Flash Memory: 32 KB (with 0.5 KB used by bootloader)
✔️ USB Type-B connector for programming & power
✔️ Standard shield compatibility
✔️ Compatible with Arduino IDE on Windows, Mac, and Linux