Arduino UNO R3 ATmega328P – Official Board with ATmega16U2 USB Interface

The Arduino UNO R3 is the most popular open-source microcontroller board in the world. Powered by the ATmega328P and using the ATmega16U2 for USB communication, it offers true USB serial compatibility without drivers on most systems. The DIP package makes it easy to swap the microcontroller if needed.

Key Features

• 14 digital I/O pins (6 capable of PWM output)
• 6 analog input pins with 10-bit ADC resolution
• ATmega16U2 USB-to-serial converter for reliable PC communication
• 16 MHz crystal oscillator for accurate timing
• ICSP header for direct SPI programming
• Compatible with all official Arduino shields and libraries
• Reset button and on-board power LED

Getting Started

Connect the board to your PC using a standard USB-B cable. Install the Arduino IDE and select Arduino UNO from the board list. No driver installation needed on most modern operating systems. Pair it with a DHT11 sensor or breadboard to start your first project.

Applications

• Home automation and IoT prototyping
• Robotics and motor control projects
• Weather monitoring stations
• LED matrix and display control
• Engineering and college project kits

Package Contents

• 1 × Arduino UNO R3 Board (ATmega16U2, DIP)