Hardware Hacking Projects for Geeks

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Preface

two of these cars and you can play laser tag. This hack is somewhat involved

and requires you to build two small circuit boards.

Chapter 14, How to Build a Wearable Computer, covers wearable computer

systems. The chapter reviews major components and explains how you can

put together an example system.

Chapter 15, How to Build an Internet Coffeemaker, explains how to build

your own web-based coffee machine. An off-the-shelf micro web server with

built-in 10BaseT Ethernet will be modified and sensors added to allow you

to check the temperature and the amount of coffee in the pot from any web

browser. You will solder together a simple circuit board for this project.

Project Downloads

In the interest of keeping down the price of this book, we decided not

to include a CD. Instead, we’ve created a web site to house all the many

schematic diagrams, photos, and software listings for each project in this

book, ready for you to download. So, don’t worry about typing in all that

code—you’ll find everything here:

http://www.oreilly.com/hardwarehacking

Using Code Examples

This book is here to help you get your job done. In general, you may use the

code in this book in your programs and documentation. You do not need to

contact us for permission unless you’re reproducing a significant portion of

the code. For example, writing a program that uses several chunks of code ...