RBD_Capacitance

Measure change in capacitance. Detect human presence and touch from behind several millimeters of material, or detect change in water levels from the outside of a plastic container. This library is meant to help determine change in relative capacitance for the reasons above, and not for calculating exact capacitance. Relative capacitance is found by measuring how long it takes for an Arduino send-pin to charge a receive-pin to HIGH (in microseconds).