This is a soil moisture sensor — an electronic device commonly used in plant watering systems, Arduino projects, and IoT agriculture applications.
🔍 Description
Name: Capacitive Soil Moisture Sensor v2.0
Type: Capacitive (non-corrosive) soil moisture detector
Material: Printed circuit board (PCB) with copper tracing and protective coating
Marking: “UPSIDE” label ensures correct orientation during installation
Working Principle:
It measures the dielectric permittivity of the soil to estimate water content. Unlike resistive sensors, this type doesn’t corrode over time because it doesn’t have exposed metal probes.
⚙️ Specifications
Operating Voltage: 3.3V–5V
Output: Analog signal (varies with moisture level)
Interface: 3-pin (VCC, GND, AO)
Applications:
Automatic plant watering systems
Smart garden controllers
Soil humidity monitoring for greenhouses
