The module is a capacitive touch-type touch switch module based on the touch detection IC (TTP223B). In the normal state, the module output is low, the mode is low power mode; when touching the corresponding position with the finger, the module will output high level, the mode switch to fast mode; when 12 seconds without touch, the mode and switch to low Power mode. You can install the module in the non-metallic materials such as plastic, glass surface, and the other thin paper (non-metallic) covered in the module surface, as long as the correct location of the touch, you can make hidden in the walls, button. The module allows you to avoid the annoyance of conventional push buttons. The module features are as follows: Jog type :: Initial state is low, touch is high, do not touch to low (similar to touch the button function) Low power consumption Power supply can be 2 ~ 5.5V Positive and negative can be used as a touch surface, can replace the traditional touch button 4 M2 screw positioning holes for easy installation With the optocoupler + bidirectional thyristor to complete the touch fluorescent lamps and other intelligent home projects; With the optocoupler + delay + two-way thyristor to complete the staircase touch lights.