Soil Moisture Hygrometer Sensor - (AD34979)

Description:

At last, your plants can talk to you! Don't get annoyed if it's just to let you know when they need something. With this module, you can know when your plants need water based on the soil moisture in your pot, garden, or patio. The two probes of the sensor act as variable resistors. Water is conductive, so the more water there is in the soil, the better the conductivity and the lower the resistance, resulting in 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 a little love. Installing this sensor and its PCB will allow you to develop your gardening skills! See the links below for how to use this sensor.

Interface description (4 wires):

- 1. VCC: 3.3 V-5V

- 2. GND: GND

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

- 4. AO: Analog Output Interface

Reference link 1

Reference link 2