Learn the basics about AS8579
A Capacitive Sensor detects the change of capacity in different applications by measuring the relative change of the impedance. This allows the detection of both the ideal situation, but also those cases where environmental changes (like a wet hand, gloves, etc.) have added a parallel resistive component along with a change in the capacitance.
The AS8579 Adapter Board includes all the necessary components for operation. So it is ideal for initial evaluation and prototyping. Additionally, the basic information is also shown in the AS8579 Adapter Board video