Exploring the Arduino Board
The photo shows an Arduino Uno board and its most important parts. I’ll explain them one by one. Let’s start with the USB connector. To connect an Arduino to your computer, you just need a USB cable. The type of the USB cable depends on the type of Arduino board you’re using. The Arduino Uno comes with the big standard-B plug, while other boards, such as the Arduino Leonardo or the Arduino Due, have the small micro-B plugs.
You can use the USB connection for various purposes:
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Upload new software to the board. (You’ll see how to do this in Compiling and Uploading Programs.)
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Communicate with the Arduino board and ...
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