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Rain Drop Moisture Detection Sensor Module for Arduino
Sensors
Product ID:
HF984795
Stock:
150 units available
Details:
The Rain Drop Moisture Detection Sensor Module is a simple, low-cost module designed to detect water...
The Rain Drop Moisture Detection Sensor Module is a simple, low-cost module designed to detect water drops, rainfall, or surface moisture in Arduino and other microcontroller projects.
๐น Components:
Rain Sensor Board (Detection Plate)
A PCB with exposed copper traces.
When water/moisture falls on it, conductivity between the traces increases.
Control Module (Signal Processing Board)
LM393 comparator IC.
Potentiometer for sensitivity adjustment.
Provides analog output (AO) and digital output (DO) pins.
๐น Working Principle:
In dry conditions โ the sensor board has high resistance โ low conductivity โ output signal changes.
When water/moisture touches the sensor โ resistance decreases, conductivity increases โ output signal changes.
The control module converts this into digital (0/1) or analog (variable voltage) output.
๐น Pin Configuration:
VCC โ +3.3V to +5V power supply
GND โ Ground
DO (Digital Output) โ HIGH/LOW signal depending on threshold (set by potentiometer)
AO (Analog Output) โ Variable voltage proportional to water/moisture level
๐น Applications:
Rain detection system for smart homes or weather stations
Automatic wiper systems for vehicles
Greenhouse and plant watering systems
Moisture monitoring in industrial processes
IoT-based smart irrigation projects
๐น How to Use with Arduino:
Connect VCC โ 5V, GND โ GND.
Connect AO to Arduinoโs analog pin (e.g., A0) for moisture level readings.
Connect DO to Arduinoโs digital pin (e.g., D2) for simple rain/no-rain detection.
Use Arduino code to read sensor values and trigger outputs like LEDs, buzzers, or motors (pumps).
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PKR 150.00