Arduino Uno Rev3 Microcontroller Board (A000066)

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Key Features ATmega328P Microcontroller — Reliable 8-bit processor built for embedded projects of all sizes 14 Digital I/O Pins — 6 configurable as PWM outputs for motors, LEDs, an d more 6 Analog Input Pins — Read sensors and analog signals with ease 16 MHz Clock Speed — Ceramic resonator for stable, consistent performance USB Type-B Connectivity — Program and power the board directly from any computer Flexible Power Options — Runs on USB, AC-to-DC adapter, or battery ICSP Header & Reset Button — Full control over programming and restarting your board The Arduino Uno Rev3 (A000066) is the world's most popular open-source microcontroller board and the reference platform for the entire Arduino ecosystem. Powered by the ATmega328P, it delivers everything you need to start building electronics projects right out of the box — simply connect via USB or plug in a power adapter and you're ready to go. Its straightforward design and massive community support make it the most documented and widely used development board available.With 14 digital I/O pins, 6 analog inputs, and full compatibility with hundreds of Arduino shields and libraries, the Uno Rev3 handles everything from simple LED circuits to complex sensor arrays and automation projects. If anything goes wrong, the ATmega328P chip is user-replaceable for just a few dollars — so you can always start fresh without scrapping the whole board.Ideal For Beginners & Students — The easiest entry point into electronics and programming Hobbyists & Makers — Rapid prototyping with a massive library of shields and add-ons Educators — A proven classroom tool for teaching coding and circuit design IoT Enthusiasts — A reliable base platform for connected device projects Professional Prototypers — Fast iteration before moving to custom PCB designs Show more