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★ 4.9★ Rated by 750+ Customers on Google

🚀 Startup India Recognized Company

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🏬 Only Physical + Online Robotics Store in Pimpri

🎓 Trusted by Engineering Students, Makers & Innovators Across India

Raindrops Detection Sensor Module – Professional Weather Monitoring and Rain Intensity Sensor for Arduino, Raspberry Pi, and Smart Home Automation

Feature	Details
Operating Voltage	3.3V to 5V DC
Sensor Material	FR-04 High-Quality Double Material
Output Type	Dual: Digital (D0) and Analog (A0)
Board Finish	Nickel Plated (Anti-Oxidation)
Control Chip	LM393 Voltage Comparator
Sensor Plate Size	5.4cm x 4.0cm

Price

🚚 Ships within 24 Hours
📦 Pan India Delivery

₹ 55.08

(Tax included)

Barcode: 5478505

Product Description

The Raindrops Detection Sensor Module is an essential tool for high-precision weather monitoring and automated moisture detection. This versatile system features a two-part design: a large, durable collection board coated with anti-oxidation nickel for long-term outdoor exposure, and a separate control module based on the LM393 voltage comparator. It operates on a resistive principle where the resistance of the sensing pad decreases as more raindrops bridge the conductive paths. Whether you are building an automated car wiper system, a smart greenhouse, or a rain-triggered window closure for a smart home, this module provides reliable, real-time data for both digital triggers and analogue intensity measurement.

Detailed Key Features

Dual Output Capability: Provides a continuous Analogue Output (AO) for measuring rainfall intensity and a Digital Switch Output (DO) for simple high/low rain detection.
Corrosion-Resistant Sensing Pad: The collection board is treated with high-quality nickel plating to fight oxidation and ensure excellent electrical conductivity over a long service life.
Onboard Sensitivity Calibration: Features an integrated potentiometer that allows you to fine-tune the digital trigger threshold to suit different environmental conditions.
Visual Status Indicators: Equipped with a power indicator LED and a digital output signal LED, allowing for quick visual debugging during installation.
Modular Versatility: The separate sensing pad and control board design allows for the electronics to be safely housed in a dry enclosure while the pad is exposed to the elements.

All Technical Details

Digital Output Signal: Standard 0 and 1 TTL logic, perfect for direct interfacing with microcontrollers.
Analogue Range: Output voltage varies from 5V (Dry) to 0V (Maximum Saturation).
Driver Board Dimensions: Compact 32mm x 15mm x 9mm for easy integration.
Collector Board Dimensions: Large 54mm x 40mm x 1.5mm area for efficient rain collection.
Installation Convenience: Includes a fixed bolt hole on both boards for secure mounting to weather station frames or chassis.
Total Weight: Approximately 50 grams for the complete set, including cables.

Prototyping & Engineering Tips (Robogears Exclusive)

Calibration Hack: When using the Digital Output (DO), spray a fine mist on the board and adjust the potentiometer until the onboard LED just turns on. This ensures your sensor is sensitive to light drizzle.
Analogue Insight: For weather stations at your Pimpri facility, the Analogue Output (AO) is superior for calculating "intensity." A dry board reads roughly 5V, while a fully soaked board drops near 0V.
Longevity Secret: Although the pad is nickel-plated, we recommend mounting it at an angle (approx. 45°) to allow water to run off, preventing mineral buildup and ensuring a faster return to a "dry" state.
Interfacing Safety: When connecting to a 5V system like the Arduino Uno, ensure the VCC is stable. If using a 3.3V system like the ESP32, power the module with 3.3V to keep the logic levels safe.

Package Includes

1 x Rainwater Collection Board (Sensor Pad)
1 x Control Module (LM393 Driver Board)
1 x 2-Pin or 5-Pin Dupont Cable (Set)

Image Disclaimer

Image shown is for illustrative purposes only; the actual product may vary slightly in design, colour, or component layout due to manufacturing updates, though all technical specifications will remain as described.