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Beginning Arduino Programming by Brian Evans

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C H A P T E R  8

Arrays and Memory

Arrays are an essential part of the Arduino programmer's toolbox. They are sometimes such a necessity that we have already thrown a few in our sketches and projects here and there. Arrays are essentially lists of variables that can contain multiple elements of the same data type. They can be used to store a list of pin numbers, sensor values, character strings, and even bitmaps for animations. While we could have introduced arrays earlier when we discussed variables and data types, the topic truly requires its own chapter to best understand how to use them. Because arrays can consume a large amount of the available memory on the Arduino microcontroller, we should also look at the types of memory space on the ...

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