Opencircuit TTP223B capacitive touch module

This module is based on a touch sensitive chip (TTP223B), which acts like a switch. When the circle on the module is touched, the output will go high, which will go low again after 12 seconds. This module can be placed behind thin glass or plastic to make an invisible switch.

This module works with a voltage of 2V to 5.5V and has an indication LED to display the output status.