T- MCU32 WiFi Bluetooth Development Board Soil Testing Module Bluetooth Wireless Control This capacitive soil moisture sensor differs from most of the resistive sensors on the market, using capacitive sensing principle to detect soil moisture. It avoids the problem that the resistance sensor is easy to corrode and greatly prolongs its working life. About the motor: The motor of the soil not move when it is connected to the power supply alone, and you need to add the code. Color:As Shown Material:plastic Package Contents: 1 * Development board 1 * cable 2 * Pin Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.