Arduino Uno Rev 3

The Arduino Uno Rev3 is the most popular and well-documented development board in the Arduino ecosystem — and the ultimate entry point into the world of electronics and embedded systems. Powered by the ATmega328P microcontroller, it’s designed to help beginners and experts alike prototype ideas and bring interactive projects to life with ease.

Whether you're just starting out or a seasoned developer, the Uno is known for its robust design, making it a go-to choice for learning and experimenting. With 14 digital I/O pins (6 of which can be used as PWM outputs), 6 analog inputs, and a 16 MHz ceramic resonator, the Uno provides all the essential features you need to build and control a wide range of electronic systems.

The board includes a USB interface, power jack, ICSP header, and reset button, and it can be powered via USB or external battery/adaptor — making setup simple and fast. Even in worst-case scenarios, the chip is replaceable, making the Uno incredibly forgiving for new users.

The name "Uno" means "one" in Italian, marking the launch of Arduino IDE 1.0. Since then, this board has remained the reference model for all official Arduino boards.

Key Features:

• ATmega328P Microcontroller

• 14 Digital I/O Pins (6 with PWM support)

• 6 Analog Inputs

• USB Type-B Connector

• ICSP Header for Direct Programming

• 16 MHz Clock Speed

• 32 KB Flash Memory

• Plug-and-Play via USB or External Power Supply

• Community & Documentation Support