Frequently Asked Questions

Here at Blue Sparq, Inc. We get a lot of questions asked to us by our customers. Before contacting us be sure to look here for a closely-related question of yours. You may discover your answer within this page.


A metal plate charged with a small current has a capacitance associated with it. When an ionic substance like a human finger comes in close proximity of this metal plate, there is a change in the capacitance associated with the metal plate. This change in capacitance is registered as a button press. This is the base of Capacitive Touch technology.

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