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 ...

This project is a simple soil moisture monitoring system using an Arduino, a soil moisture sensor, and an LCD display with I2C communication. The system reads the soil moisture level and displays the ...

This project is a simple soil moisture monitoring system using an Arduino, a soil moisture sensor, and an LCD display with I2C communication. The system reads the soil moisture level and displays the ...

Soil Moisture Monitoring with Arduino – Circuit Diagram. Fig. 3 shows the physical connection of the system, while Fig. 4 provides the schematic. In both diagrams, the sensor’s output signal pin is ...

My soil-moisture reading was in the low 700s in soil that had around 30 percent moisture (according to a comparison with a commercial soil-moisture sensor), and 661 in a drier pot.