Soil Moisture Sensor Pinout. The Soil moisture sensor a.k.a the soil humidity sensor, has four pins VCC, GND, Aout, Dout.These four pins can be used to get the soil moisture data from the sensor, The ...

The soil moisture sensor module , built around the LM393 comparator, gives an active-low (L) level output when the soil is dry (determined by a pre-setted threshold value). This digital output (wet ...

Circuit Diagram: Circuit Diagram of Soil Moisture Sensor Circuit is given below:. Working Explanation: This Soil Moisture Detector Circuit is very simple. Here we have used a soil moisture detector ...

This is a simple arduino project for a soil moisture sensor that will light up a LED at a certain moisture level. It uses Arduino Duemilanove microcontroller board. Two wires placed in the soil pot ...

Fig. 2: Circuit diagram of the digital soil moisture meter Front-end of the digital soil moisture meter is a simple soil moisture sensor head, built around a few easily-available parts. Working of the ...

As shown in circuit diagram of a sensor node in Fig. 2, ... That means its output voltage decreases as soil moisture content increases. Arduino converts this analogue voltage into digital value ...

The key objective of the project is to monitor the soil’s moisture content with the aid of a moisture sensor circuit, and irrigate it based on its nature using a Arduino UNO, NodeMCU, YL-69 and an ...