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A capacitive touch sensor module based on the dedicated TTP223 touch sensor IC. The module provides a single integrated touch sensing area of 11 x 10.5mm with a sensor range of ~5mm. An on-board LED will give a visual indication of when the sensor is triggered. When triggered the modules output will switch from its idle low state to high (default operation). Solder jumpers allow for reconfiguring its mode of operation to be either active low or toggle output.Main Features1.This module is based on a touch detection IC ( TTP223 ) of capacitive type touch jog switch module.2.A very useful addition for projects or applications where a conventional mechanical button or switch is not an ideal choice.3.This low cost, low power module can easily add a single capacitive touch input to any of your projects.4.The module can be installed in plastic, glass surface non-metallic materials.5.As long as the touch of the correct position, you can make hidden in the wall, desk and other places.