In a way, the magic of a soil moisture sensor’s functionality boils down to a simple RC circuit. But of course, in practice there is a bit more to it than that. [rbaron] explains exactly how … ...

Here using ATMEGA 4809 Arduino nano board and Capacitive Soil Moisture Sensor V2, I am trying to make an Automatic drip-irrigation system. ... (refer to the below circuit diagram). Note: Arduino Nano ...

This article presents a method for indirectly measuring the moisture content of paddy using a cylindrical capacitive sensor combined with Charge Integrator Circuits. The moisture measurement device ...