The following photograph displays the locations of the two push buttons, labeled A and B, that come with the board:
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The following photograph shows the location of the slide switch on the device:
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The following photograph shows the location of the seven capacitive touchpads on the board:
Courtesy of adafruit.com
Each touchpad contains a different material that can conduct electricity. Alligator clips can be used to connect these materials to the pads. Additionally, metals, water, and fruits can conduct electricity well enough to be used as connectors to the pads.
Now, let's take a look at how to detect the press of a button.