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The Capacitive Soil Moisture Sensor v1.2 is an efficient and durable solution for measuring soil moisture in your gardening or automation projects. Unlike resistive sensors, this sensor uses the principle of capacitance between electrodes rather than resistance, which significantly extends its lifespan. Additionally, the electrodes are coated with an anti-corrosion layer, preventing oxidation and ensuring greater durability in humid environments.
This sensor is compatible with Arduino, PIC, ESP8266, and NodeMCU, making it ideal for plant monitoring systems or automated irrigation projects. Thanks to its ability to accurately measure soil moisture levels, you can precisely know when your plants need watering, or even automate the entire watering process by adding a pump or valve. If the sensor is connected to an Internet-enabled system, you can monitor and control your garden from anywhere in the world.
The sensor works by measuring the capacitance between two electrodes inserted into the soil. When the soil is moist, capacitance is low, and when the soil is dry, capacitance is high. The sensor outputs an analog signal that ranges from 0V (very wet soil) to 5V (very dry soil). To use it with Arduino, simply connect the sensor’s analog output to an analog input on the Arduino.
Important recommendations: Insert only the electrode part into the soil, and ensure the circuits are protected from moisture. To add extra protection, you can apply a layer of lacquer or PCB varnish to the components.
