Hygrometer Soil Moisture Sensor - (AD34979)

Description:

Finally, your plants can talk to you! Don't be mad if it's just to let you know when they need something. With this module, you can tell when your plants need water based on the soil moisture in your pot, garden, or patio. The two sensor probes act as variable resistors. Water is conductive, so the more water in the soil, the better the conductivity and the lower the resistance with a higher output signal.

Use it in a home automatic irrigation system, connect it to IoT, or simply use it to know when your plant needs some TLC. Installing this sensor and its PCB will help you develop your gardening skills! See below for links on how to use this sensor.

Interface Description (4 wires):

- 1. VCC: .3 V-5V

- 2. GND: GND

- 3. DO: digital output interface (0 and 1)

- 4. AO: Analog Output Interface

Reference link 1

Reference link 2