Soil moisture sensor to measure the humidity of the soil / soil on the basis of the LM393 chip. The digital output on the module is high when the soil / soil is too dry and low when the soil is wet with a potentiometer.
With the analog output you can measure humidity value. This value is between 0 and 1023 where the 0 stands for wet and the 1023 for completely dry.

Soil moisture sensor specifications:

- Works on: 3.3V - 5V.
- Double output: digital and analogue.
- Adjustable with pot meter.
- Power led red.
- Digital output led green