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 ...

Arduino Soil Moisture Sensor Circuit – Connection Diagram. Now that we have a complete understanding of how a Soil Moisture sensor works, we can connect all the required wires to the Arduino UNO board ...

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 ...

Circuit Diagram. Components. Arduino Uno; NPK 7-in-1 Soil Sensor; RS485 Module; Power Supply (5V DC) ... RS485 module, and NPK 7-in-1 Soil Sensor if you encounter communication errors. Ensure that the ...