Chapter 15

Great Projects You Can Build in 30 Minutes or Less

In This Chapter

arrow Creating unique light blinkers and flashers

arrow Putting the squeeze on with piezoelectricity

arrow Seeing like a cat with an infrared sensor

arrow Rigging a couple of alarms

arrow Finding your way with your very own portable electronic compass

arrow Sounding off with your own amplifier

arrow Bringing the presence of water to light

Getting up to speed on electronics really pays off when you get to the point where you can actually build a project or two. In this chapter, you get to play with several fun, entertaining, and educational electronics gadgets that you can build in half an hour or less. We selected the projects for their high cool factor and their simplicity. We’ve kept parts to a minimum, and the most expensive project costs under ...

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