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SECOND EDITION

Arduino Cookbook

Michael Margolis

Beijing

•

Cambridge

•

Farnham

•

Köln

•

Sebastopol

•

Tokyo

Arduino Cookbook, Second Edition

by Michael Margolis

Printed in the United States of America.

Published by O’Reilly Media, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472.

O’Reilly books may be purchased for educational, business, or sales promotional use. Online editions

are also available for most titles (http://my.safaribooksonline.com). For more information, contact our

corporate/institutional sales department: (800) 998-9938 or

corporate@oreilly.com.

Editors:

Shawn Wallace and Brian Jepson

Production Editor:

Teresa Elsey

Proofreader:

Kiel Van Horn

March 2011:

December 2011:

First Edition.

Second Edition.

Indexer:

Lucie Haskins

Cover Designer:

Karen Montgomery

Interior Designer:

David Futato

Illustrator:

Robert Romano

Revision History for the Second Edition:

2011-12-09

First release

2013-05-17

Second release

See

http://oreilly.com/catalog/errata.csp?isbn=9781449313876

for release details.

Nutshell Handbook, the Nutshell Handbook logo, and the O’Reilly logo are registered trademarks of

O’Reilly Media, Inc.

Arduino Cookbook,

the image of a toy rabbit, and related trade dress are trademarks

of O’Reilly Media, Inc.

Many of the designations used by manufacturers and sellers to distinguish their products are claimed as

trademarks. Where those designations appear in this book, and O’Reilly Media, Inc., was aware of a

trademark claim, the designations have been printed in caps or initial caps.

While every precaution has been taken in the preparation of this book, the publisher and authors assume

no responsibility for errors or omissions, or for damages resulting from the use of the information con-

tained herein.

ISBN: 978-1-449-31387-6

[LSI]

1368725222

Table of Contents

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

1. Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Installing the Integrated Development Environment (IDE)

1.2 Setting Up the Arduino Board

1.3 Using the Integrated Development Environment (IDE) to Prepare

an Arduino Sketch

1.4 Uploading and Running the Blink Sketch

1.5 Creating and Saving a Sketch

1.6 Using Arduino

2. Making the Sketch Do Your Bidding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

2.10

2.11

2.12

2.13

2.14

2.15

2.16

2.17

2.18

2.19

Structuring an Arduino Program

Using Simple Primitive Types (Variables)

Using Floating-Point Numbers

Working with Groups of Values

Using Arduino String Functionality

Using C Character Strings

Splitting Comma-Separated Text into Groups

Converting a Number to a String

Converting a String to a Number

Structuring Your Code into Functional Blocks

Returning More Than One Value from a Function

Taking Actions Based on Conditions

Repeating a Sequence of Statements

Repeating Statements with a Counter

Breaking Out of Loops

Taking a Variety of Actions Based on a Single Variable

Comparing Character and Numeric Values

Comparing Strings

Performing Logical Comparisons

iii

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