Capacitive Touch Sensor Module MPR121

Description

The module is based on a touch-sensing IC (TTP223B) capacitive touch switch module. In the normal state, the modules output is low, lower power consumption; when a finger touches the corresponding position, the modules output is high, if not touched for 12 seconds, it switches to low-power mode. Jog type: the initial state is lower, higher touch , do not touch is lower ( similar touch of a button feature )
This Module can be installed in such as surface plastic, glass of non-metallic materials. In addition to the thin paper (non-metallic) covering the surface of the module , as long as the correct location of the touch , you can make hidden in the walls, desktops and other parts of buttons.

FEATURES:
•    Low power consumption
•    Power supply for 2.5-.5V DC
•    Can replace the traditional touch of a button
•    Four M2 screws positioning holes for easy installation