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CHAPTER 5: Sounds > Summary

Summary

In this chapter you learned about the principles of the piezoelectric effect and the reverse piezoelectric effect to be able to sense and to generate sound. You influenced the frequency of the oscillation of a piezo buzzer to produce sounds. You also used the piezo buzzer to detect oscillation of the piezo element caused by waves of pressure or vibration in proximity of the buzzer. Along the way, you learned about the Arduino tone method and how to work with the Android Spinner UI element. Once again you utilized the analog features of your ADK board for reading analog values and converting them into digital ones to sense sound or vibration in your proximity. You can use all this learning in further projects of your own to, for example, give audible feedback or sense vibration.


  

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