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.. 5.1

Frequency response of Piezo
===========================

**Objective**

Plot the frequency response curve of the Piezo disk by scanning through
the frequency and measuring the amplitude of the microphone output.

.. image:: schematics/sound-capture.svg
	   :width: 300px
.. image:: pics/piezo-freq-resp.png
	   :width: 300px

**Procedure**

-  Make the connections and keep the Mic and the Buzzer facing each
   other
-  Press START button

**Discussion**

The Frequency Vs Amplitude plot is shown in figure. The amplitude is
maximum around 3500 Hz.
