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Arduino for Beginners: Essential Skills Every Maker Needs by John Baichtal

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12. Safely Working with High Voltage

Zap! We’ve successfully trained ourselves to fear high voltage electricity, and rightfully so! It’s hard to kill yourself with an AA cell, but sticking your tongue in an outlet is sure disaster. In this chapter, you’ll explore a couple of ways to safely use high voltage in your projects. You’ll then make an Arduino-controlled Lava Lamp Buddy that turns your lava lamp on and off on a schedule, or at the command of a remote control (see Figure 12.1). It’s just what every lava lamp needs!

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FIGURE 12.1 The Lava Lamp Buddy controls your favorite bubbling light fixture.

Lesson: Controlling High Voltage

The secret ...

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