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

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10. Making Noise

You can do a lot of crazy things with an Arduino, and one of them is making noise! All you really need is a speaker wired in to a couple of pins, but you can add fun extras like buttons, knobs, and sensors to modify the sound. In this chapter, you’ll examine a few ways you can generate cool sounds with your Arduino, and then build a fun noisemaking toy (see Figure 10.1).

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FIGURE 10.1 In this chapter, you get to build a cool noisemaker.

Noise in Electronics

People have been making electronic music ever since electronics were invented, and some of the most adventurous and creative of these folks are ordinary people hacking at home. ...

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