Analog Input | Arduino Documentation
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arduino uno - Use all pins As digital I/O - Arduino Stack Exchange
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![The Full Arduino Uno Pinout Guide [including diagram]](https://images.prismic.io/circuito/8e3a980f0f964cc539b4cbbba2654bb660db6f52_arduino-uno-pinout-diagram.png?auto=compress,format "The Full Arduino Uno Pinout Guide [including diagram]")
The Full Arduino Uno Pinout Guide [including diagram]
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