The module is based on a touch-sensing IC (TTP223B) capacitive touch switch module. In the normal state, the modules output is low, lower power consumption; When a finger touches the corresponding position, the modules output is high, if not touched for 12 seconds, it switches to low-power mode. Jog type : the initial state is lower , higher touch , do not touch is lower. This Module can be installed in such as surface plastic, glass of non-metallic materials.In addition to the thin paper ( non-metallic ) covering the surface of the module , as long as the correct location of the touch , you can make hidden in the walls, desktops and other parts of buttons.

This is Soil Moisture Meter, Soil Humidity Sensor, Water Sensor, Soil Hygrometer for Ardunio. With this module, you can tell when your plants need watering by how moist the soil is in your pot, garden, or yard. The two probes on the sensor act as variable resistors. Use it in a home automated watering system, hook it up to IoT, or just use it to find out when your plant needs a little love. Installing this sensor and its PCB will have you on your way to growing a green thumb