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Arduino Electronics Blueprints by Don Wilcher

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Building a capacitive touch controller

The capacitive touch controller can easily be hardwired to a DC servo motor. The touch sensor circuit provides the electronics for reading the capacitances of the sensing plate and provides an Arduino control signal to operate the DC servo motor. The steps to build the capacitive touch controller are as follows:

  1. Build a capacitor sensor using the assembly diagrams as follows:
    Building a capacitive touch controller

    Note

    Image (a) shows the capacitor sensor dimensions, while Image (b) shows the individual materials assembled.

    Building a capacitive touch controller

    The finished capacitor touch ...

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