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
-Control Interface : A total of three pins (GND, VCC, SIG), GND to ground , VCC is the power supply , SIG digital signal output pin ; -Power Indicator : Green LED, power on the right that is shiny ; -Touch area : Similar to a fingerprint icon inside The module is based on a touch-sensing ic (ttp223b) capacitive touch switch module. In the normal state, the module output low, low power consumption. when a finger touches the corresponding position, the module output high, if not touched for 12 seconds, switch to low-power mode.