What is simple touch key?
A simple touch key is an electronic device that operates with the touch of a finger and is used as an input for various devices such as smartphones, keyboards, and other touch devices. This technology works based on the changes in electric current that occur when the finger touches the surface. Touch keys can be divided into resistive and capacitive. Resistive touch switches use two conductive layers that are joined by finger pressure to complete the circuit. In contrast, capacitive touch keys use changes in capacitance caused by finger touch to detect input.