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Periscopes for cars

Hardware Hacking Projects for Geeks by Scott Fullam, O鈥橰eilly, $29.95, 拢20.95 ISBN 0596003145 Reviewed by Will Knight

WHO would have thought you could connect a toaster to the internet in a weekend, build yourself an extra laptop battery for a few dollars, and turn a whole building into a giant computer display in what鈥檚 left of your spare time?

These are just some of the ingenious electronic hardware 鈥渉acks鈥 revealed in Scott Fullam鈥檚 Hardware Hacking Projects for Geeks. Though not ideal for someone who isn鈥檛 prepared to void the warranty on a few household appliances, Fullam provides an excellent introduction to practical electronics, as well as a whole lot of fun.

Projects increase in complexity as the book progresses, but the construction methods, circuit schematics and software code are all presented in a way that should be simple enough for a novice to understand. There are also plenty of useful photographs to help the reader along.

Be ambitious and surprise yourself: before long, you鈥檒l have built a video periscope for your car and 鈥 one up on the famous Cambridge coffee pot watcher 鈥 a coffee machine that automatically reports its readiness via the web.

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