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Beginning Arduino Programming by Brian Evans

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C H A P T E R  9

Hardware Libraries

In this chapter we are going to take a bit of a breather on the lengthy code and look at some specific hardware and the appropriate libraries used to make them work. A library is a collection of functions designed to perform specific tasks that make life easier for us. Most of what we have discussed in this book so far, like the functions digitalWrite() or delay(), are a part of the standard Arduino library. These things are so integrated into the way that we write code for the Arduino that we don’t even notice it.

The hardware libraries that we will discuss in this chapter are not a part of the standard, built- in functions because they would take up too much memory. Instead, each library must be added to ...

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