Rain Drop Sensor Module for Weather & Soil Moisture Detection

Product Name

Rain Drop Sensor Module for Weather & Soil Moisture Detection

Primary Function

Detects water droplets and surface moisture to trigger environmental responses in electronic systems

Working Principle

Uses a resistive sensor plate that changes conductivity based on water presence; outputs analog and digital signals

Operating Voltage

3.3V – 5V DC

Output Types

– Analog Output (AO): Varies with moisture level- Digital Output (DO): Triggered when moisture exceeds threshold (adjustable via potentiometer)

Interface Type

3-pin or 4-pin header (VCC, GND, AO, DO)

Module Components

– Rain sensor plate with conductive grid- Signal processing board with comparator and potentiometer

Key Features

Adjustable sensitivity, dual analog/digital output, corrosion-resistant PCB, low power consumption

Applications

Weather stations, automatic irrigation systems, greenhouse control, rain alarms, smart gardening setups

Compatible Platforms

Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and other microcontrollers

Professional Use Case

Ideal for embedded developers and agritech engineers building smart climate or irrigation systems

Expert Commentary

A simple yet effective solution for detecting rainfall or surface moisture, enabling automation and environmental monitoring at a low cost

Sensor Durability

Suitable for light rain and indoor use; apply protective coating or cover for long-term outdoor applications

Operating Temperature Range

-10°C to +70°C

Compliance

RoHS Compliant

Stock & Availability

In stock; available in single units or bulk for educational kits and IoT development