C H A P T E R  7

Advanced Functions

So far we've covered not only the structure and syntax of programming Arduino's C-based programming language, but we've also examined many of the Arduino library's basic functions for reading and writing to digital and analog input and output pins. In this chapter, we will build on this foundation to catch up with some of the more advanced topics surrounding functions, including a look at a few functions that we haven't had the opportunity to cover so far in this book. We'll also cover how to write our own functions, including how functions work, as well as how to use a special kind of function called an interrupt service routine that works with the Arduino's hardware interrupt pins.

Let's begin with a discussion ...

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