Ebook.OREILLY-MAKE ARDUINO BOTS AND GADGETS SIX EMBEDDED PROJECTS WITH OPEN SOURCE HARDWARE AND SOFTWARE.pdf

Make: Arduino Bots and

Gadgets

Learning by Discovery

Kimmo and Tero Karvinen

with photographs and illustrations by the authors

Beijing • Cambridge • Farnham • Köln • Sebastopol • Tokyo

Make: Arduino Bots and Gadgets

by Kimmo and Tero Karvinen

Printed in Canada.

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

O’Reilly Media books may be purchased for educational, business, or sales promotional use. Online editions are also avail-

able for most titles ( my.safaribooksonline.com ). For more information, contact our corporate/institutional sales department:

800-998-9938 or corporate@oreilly.com .

Development Editors: Brian Jepson and Brian Sawyer

Production Editor: Holly Bauer

Technical Editor: Joe Saavedra

Copyeditor: Rachel Monaghan

Proofreader: Jennifer Knight

Translator: Marko Tandefelt

Indexer: Ellen Troutman Zaig

Cover Designer: Mark Paglietti

Interior Designer: Ron Bilodeau

Illustrator/Photographer: Kimmo Karvinen

Cover Photographer: Kimmo Karvinen

Software Architect: Tero Karvinen

Print History:

March 2011: First Edition.

The O’Reilly logo is a registered trademark 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.

Important Message to Our Readers: The technologies discussed in this publication, the limitations on these technologies

that technology and content owners seek to impose, and the laws actually limiting the use of these technologies are con-

stantly changing. Thus, some of the projects described in this publication may not work, may cause unintended harm to

systems on which they are used, or may not be consistent with current laws or applicable user agreements.

Your safety is your own responsibility, including proper use of equipment and safety gear, and determining whether you

have adequate skill and experience. Electricity and other resources used for these projects are dangerous unless used prop-

erly and with adequate precautions, including safety gear. These projects are not intended for use by children. While every

precaution has been taken in the preparation of this book,

O’Reilly Media, Inc. and the authors assume no responsibility for errors or omissions. Use of the instructions and suggestions

in Make: Arduino: Bots and Gadgets is at your own risk. O’Reilly Media, Inc. and the authors disclaim all responsibility for any

resulting damage, injury, or expense. It is your responsibility to make sure that your activities comply with applicable laws,

including copyright.

This book uses Otabind™, a durable and flexible lay-flat binding.

ISBN: 978-1-449-38971-0

[TI]

Contents

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Building Philosophy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Reusing Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Buying Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Useful Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Electronic Circuit Theory Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2. Arduino: The Brains of an Embedded

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Why Arduino? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Starting with Arduino . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Hello World with Arduino . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Structure of “Hello World” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Arduino Uno . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Arduino Nano . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3. Stalker Guard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

What You’ll Learn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Tools and Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Solderless Breadboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Jumper Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Ping Ultrasonic Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Vibration Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Combining Components to Make the Stalker Guard . . . . . . . . . . . . . . . . . . . . . . . 41

Making the Motor Vibrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Providing Power from a Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Making an Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

iii

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