Arduino Uno: Specs, dimensions & pinout

The Arduino Uno is one of the most popular compact development boards on the market. Learn about Arduino Uno specifications, capabilities, pinout and more.

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Make sure this fits by entering your model number. This board is your entry to the unique Arduino experience: great for learning the basics of how sensors and actuators work and an essential tool for your rapid prototyping needs. Arduino Uno is the most used and documented board in the world. Uno means one in Italian and was chosen to mark the release of Arduino Software IDE 1.0 now evolved to newer releases.

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