This is chapter forty-two of a series originally titled “Getting Started/Moving Forward with Arduino!” by John Boxall – a series of articles on the Arduino universe. The first chapter is here, the complete series is detailed here. Any files from tutorials will be found here.
This will be the first of two chapters that will examine another useful form of input – the numeric keypad; and some applications that hopefully may be of use. Here is the example we will be working with:
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