Soil Moisture Sensor

Analog soil moisture sensor for monitoring water level in soil for irrigation projects. The **Soil Moisture Sensor** measures the volumetric water content in soil. It consists of two main parts: a two-pronged probe that inserts into the ground and an electronic receiver board that processes the signals. It works by passing a current through the soil between the prongs to measure electrical resistance; wetter soil conducts electricity easily (low resistance), while dry soil conducts poorly (high resistance). The module provides both an analog output for precise moisture level readings and a digital output with an adjustable threshold potentiometer to trigger a signal when the soil gets too dry.