Raindrop Detection Sensor Module designed for moisture detection, rain sensing, water monitoring, and automation control systems. This module uses a high quality nickel plated sensing board to detect raindrops based on resistance change, making it suitable for Arduino, ESP32, Raspberry Pi, and other microcontroller based projects.

The sensor works on resistive principle where water droplets create a conductive path across the sensing surface. When rain or moisture is detected, resistance decreases and the module outputs both analog and digital signals. The onboard LM393 comparator ensures stable digital output with adjustable sensitivity using a potentiometer.

This rain sensor module is widely used in smart irrigation systems, weather monitoring systems, automatic wiper control, water leakage detection, and environmental sensing projects. The module includes both sensing plate and control board for easy integration.

BDTronics supplies high quality raindrop sensor modules in Bangladesh suitable for electronics engineers, IoT developers, students, and automation system designers. This module provides reliable rain detection for smart systems and DIY electronics projects.

Features:

• Raindrop Detection Sensor Module with LM393 Comparator

• Dual Output: Analog Output (AO) and Digital Output (DO)

• Adjustable Sensitivity using Onboard Potentiometer

• Nickel Plated Sensing Surface for Better Conductivity

• Fast Response to Water Droplets and Moisture

• Stable Digital Output Signal for Microcontroller Input

• Wide Operating Voltage 3.3V to 5V

• Low Power Consumption Module

• Corrosion Resistant Double Sided PCB Material

• Easy Interface with Arduino, ESP32, Raspberry Pi

• Bolt Holes for Easy Installation and Mounting

• Compact Size for Embedded Systems and IoT Devices

• Reliable Performance for Long Term Use

Applications:

• Rain Detection Systems

• Smart Irrigation Control Systems

• Automatic Water Pump Control

• Weather Monitoring Stations

• Water Leakage Detection Systems

• Car Automatic Wiper Systems

• Home Automation Systems

• Industrial Moisture Detection

• Satellite Communication Equipment Protection

• Environmental Monitoring Projects

• IoT Based Rain Alert Systems

• DIY Electronics Projects

How It Works:

• The sensing plate contains conductive tracks

• When dry, resistance between tracks is high

• When raindrops fall, water creates conductive path

• Resistance decreases as moisture increases

• Analog output varies based on moisture level

• Digital output switches HIGH or LOW when threshold exceeded

• Threshold level can be adjusted using onboard potentiometer

How to Use:

• Connect VCC to 3.3V or 5V power supply

• Connect GND to system ground

• Connect DO pin for digital output signal

• Connect AO pin for analog moisture reading

• Adjust potentiometer to set sensitivity threshold

• Place sensing plate in area exposed to rain

• Connect output to Arduino or microcontroller input pin

• Use digital output for simple rain detection

• Use analog output for measuring rain intensity

Pin Configuration:

• VCC: Power Supply (3.3V–5V)

• GND: Ground

• DO: Digital Output (High/Low)

• AO: Analog Output

Specifications:

• Working Voltage: 3.3V – 5V

• Output Type: Digital and Analog

• Comparator IC: LM393

• Digital Output Current: Up to 15mA

• Sensor Plate Size: Approx. 5cm × 4cm

• Control Board Size: Approx. 3.2cm × 1.5cm

• Material: Double Sided PCB with Nickel Plating

• Sensitivity: Adjustable via Potentiometer

Package Includes:

• 1 × Raindrop Sensor Control Module

• 1 × Rain Detection Sensing Plate

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