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Learn — soil moisture sensor

Soil Moisture Sensor Module (Capacitive) Guide

Posted by Kelly M on

Soil Moisture Sensor Module (Capacitive) Guide

The Soil Moisture Sensor Module (Capacitive) acts like a capacitor where the water level changes the capacity and we can measure that charge and discharge timing. It is a popular module for measuring the moistness of soil. The biggest advantage over a traditional moisture sensor is that the capacitive sensor doesn't corrode. In this article, we will talk about how to wire and set up the module for operation with an Arduino Board.  Wiring  Most soil moisture sensor module operates between 3.3V to 5V and produce an analog output. For this project, we will be using Soil Moisture Sensor Module (Capacitive),...

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Soil Moisture Sensor (Resistive) Guide

Posted by Kelly M on

Soil Moisture Sensor (Resistive) Guide

The Soil Moisture Sensor Module (Resistance) consists of two probes which are used to measure the volumetric content of water. The two probes allow the current to pass through and then it gets the resistance value to measure the moisture value. However, the major issue with resistive soil moisture sensor is the corrosion of the sensor probes. it is because it is in contact with the soil while there is also a DC current flowing which causes electrolysis of the sensors.  In this article, we will talk about how to wire and set up the module for operation with an...

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