Adafruit Arduino Uno R3

Arduino is an open-source electronics prototyping platform, blending flexible hardware with intuitive software, designed for creative experimentation and interaction. This versatile platform can detect environmental changes via various sensors and can influence its surroundings by managing lights, motors, and other actuators.

The Arduino Uno, built on the ATmega328P microcontroller, features 14 digital input/output pins, including 6 PWM outputs, 6 analog inputs, and a 16 MHz ceramic resonator. It conveniently connects to your computer via USB or operates using AC-to-DC adaptors or batteries.

Easily replaceable, the Uno allows worry-free experimentation. It was initially released to accompany Arduino Software (IDE) 1.0 as the reference model. The latest version, Arduino Uno R3, enhances usability with an upgraded USB interface, 3.3V reference shield header, and a 500mA fuse for USB port protection.

Compatible with older iterations, including Duemilanove and Diecimilla, the Uno ensures that your existing shields, libraries, and code remain functional. Additional features of the R3 version include an automatic circuit for power selection and expanded pins, amplifying its connectivity and versatility.