Arduino project: read analog input
Arduino project: read a digital input
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![The Full Arduino Uno Pinout Guide [including diagram]](https://images.prismic.io/circuito/0f83e727bd5b62cfcfbaea10eb1de83ffb3af5ba_arduino-uno-pinout-power-supply.png?auto=compress,format "The Full Arduino Uno Pinout Guide [including diagram]")