Touch surface specification: 1.4*1.4cm
Possessing mode: jog, self-locking
Power supply voltage: 2.5-5.5V
Penetration distance: about 5mm (non-metal)

This module is a capacitive touch switch module based on touch detection IC (TTP223B). The module defaults to output low level, and the mode is low power consumption mode; when you touch the corresponding position with your finger, the module will output high level, and touch again to return to low level. The mode switches to fast mode; when there is no touch for 12 seconds, the mode switches to low power consumption mode. The module can be installed on the surface of non-metallic materials such as plastic and glass, and a thin piece of paper (non-metal) can be covered on the surface of the module. As long as the touch position is correct, it can be made into a hidden wall, desktop, etc. button. This module allows you to avoid the trouble of regular pressing buttons.

(TTP223B chip parameters)

Please note the installation:After the module is fixed, power on again, so that he can remember the thickness of the partition. It takes about 1S to stabilize after power on. Do not touch the keys during this time period.