Soil Moisture Meter V2.0

This new type of capacitive soil humidity sensor differs from other resistive sensors by adopting a capacitive sensing principle to detect soil humidity.

It is divided into the signal end and the detected end. When it is inserted into the soil, the signal end will output an analog value. The segmented wire connection and casing pipe enhance its waterproof performance.

Since the circuit is not exposed at the detected end, the corrosion problem of the sensor is avoided, extending its life expectancy.

The built-in chip supports a 3.3~5.5V working environment and is compatible with Arduino, ESP32, micro:bit, and other controllers.

As for a mini PC, you would need an ADC module to convert the analog signals into digital signals.