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).

Author: Alex Taujenis

Maintainer: Alex Taujenis

Read the documentation


This library is compatible with all architectures so you should be able to use it on all the Arduino boards.


To use this library, open the Library Manager in the Arduino IDE and install it from there.