MAKER AND HACKER TTP223B CAPACITIVE TOUCH KEY SENSOR MODULE Best for DIY Home Automation IOT/Touch Sensor Project Arduino Educational Electronic Hobby Kit

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.