Rain Drop Sensor Module
Rain Drop Sensor Module
Rain Drop Sensor Module
Detect rainfall and water presence instantly with this Rain Drop Sensor Module. Featuring a rain detection board and a control module with both analog and digital outputs, this sensor is ideal for building automated weather stations, smart irrigation systems, and rain-activated devices. A must-have module for weather monitoring and IoT projects, available at The Tech Depot, Bengaluru with fast shipping and full technical support.
Specifications
| Module Type | Rain Drop / Water Detection Sensor |
| Operating Voltage | 3.3V - 5V DC |
| Output Type | Analog (AO) & Digital (DO) |
| Comparator Chip | LM393 |
| Sensitivity Adjustment | Onboard Potentiometer (Adjustable Threshold) |
| Digital Output | High/Low (Rain Detected / No Rain) |
| Analog Output | Variable Voltage Proportional to Water Level |
| Indicator LEDs | Power LED & Digital Output LED |
| Sensing Board Size | Approx. 54mm x 40mm |
| Control Board Size | Approx. 32mm x 14mm |
| Sensing Principle | Conductivity-Based (Water Bridges Traces) |
| Interface | 4-Pin Header (VCC, GND, AO, DO) |
| Connector | 2-Pin Wire Between Sensor Board & Control Board |
| Compatible Platforms | Arduino, ESP8266, ESP32, Raspberry Pi, STM32 |
| Origin | Original / Authentic Module |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Dual Output Modes: Provides both analog output for measuring rain intensity and digital output for simple rain/no-rain detection.
- Adjustable Sensitivity: Onboard potentiometer lets you fine-tune the digital threshold to match your application requirements.
- LM393 Comparator: Reliable comparator chip delivers clean, stable digital output signals with minimal noise.
- Wide Voltage Compatibility: Operates seamlessly at both 3.3V and 5V, making it compatible with virtually any microcontroller platform.
- Visual Indicators: Power and signal LEDs provide instant visual feedback for quick debugging and status monitoring.
- Nickel-Plated Sensing Traces: Rain detection board features nickel-plated conductive traces for improved corrosion resistance and longer sensor life.
- Two-Board Design: Separate sensing board and control board connected by wire, allowing flexible mounting and placement.
- Lightweight & Compact: Small form factor makes it easy to integrate into enclosures, weather stations, and outdoor housings.
Why Choose This Rain Drop Sensor Module?
- 100% authentic module sourced from trusted and authorized suppliers
- Plug-and-play with Arduino and popular microcontroller ecosystems - no complex wiring needed
- Dual analog and digital output gives you maximum flexibility for different project requirements
- Onboard potentiometer eliminates the need for external calibration circuitry
- 1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse
- Expert technical support included to help you integrate the sensor into your project
- Ideal for both beginners learning sensor interfacing and professionals building commercial systems
How It Works
- Rain Detection Board: The sensing board has exposed nickel-plated traces arranged in a comb pattern. When water droplets land on the board, they bridge adjacent traces and create a conductive path, changing the resistance.
- Control Board Processing: The control module reads the resistance change and outputs a proportional analog voltage on the AO pin. Simultaneously, the LM393 comparator compares this value against the threshold set by the potentiometer and outputs a digital HIGH or LOW on the DO pin.
- Analog Reading: The analog output decreases as more water covers the sensing board - a lower value indicates heavier rainfall or more water presence.
- Digital Reading: When the detected water level exceeds the potentiometer-set threshold, the digital output goes LOW (active low), indicating rain is detected.
Pin Configuration
| Pin | Label | Description |
| 1 | VCC | Power Supply Input (3.3V - 5V DC) |
| 2 | GND | Ground Connection |
| 3 | AO | Analog Output - Variable voltage proportional to water level |
| 4 | DO | Digital Output - HIGH (no rain) / LOW (rain |
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy Rain Drop Sensor Module Online in India
Purchase the Rain Drop Sensor Module online at The Tech Depot - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Rain Drop Sensor Module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy Rain Drop Sensor Module at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.