"Electronic gadgets are fun to play with, but they're even more fun to build! Students will unlock the mysteries of electronics, sensors, and LEDs with this book as it provides both technical information and step-by-step projects. Clubs, online communities, and additional resources are also discussed to help ambitious makers progress to the next level in their newfound hobby"--Provided by the publisher.

Includes glossary.

Be a maker! -- Then and now -- How do sensors work? -- How do LEDs work? -- Join a club! -- Make an LED throwie! -- Getting started with sensors -- Motion-sensing alarm -- Even more projects -- Keep experimenting.