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Rain Drop Sensor Module

Rain Drop Sensor Module

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  • The LM393, use of the wide voltage comparator that provide both digital and analog output.
  • Treatment of nickel plating and surface, have fight oxidation, electrical conductivity, and life has more superior performance
  • The comparator output, signal clean, good waveform, driving ability is strong, for more than 15 mA
  • With potentiometer sensitivity adjustment and has a fixed bolt hole, convenient installation
  • Output LED indicator.
  • Compatible with Arduino.

Rain Drop Sensor Module

The Raindrops Detection sensor module is used for rain detection. This raindrop sensor is also used for measuring rainfall intensity. The rain sensor can be used for all kinds of weather monitoring and translated into output signals and AO. Raindrops Detection Sensor Module Rain Weather Module for Arduino, etc. The rain sensor can be used to monitor a variety of weather conditions and turned into several fixed output signals and Analog outputs.

This raindrop sensor module includes a printed circuit board (control board) that “collects” the raindrops. As raindrops are collected on the circuit board, they create paths of parallel resistance that are measured via the op-amp. The lower the resistance (or the more water), the lower the voltage output. Conversely, the less water, the greater the output voltage on the analog pin. A completely dry board, for example, will cause the module to output 5V.

The sensor module includes a rain board and a control board that is separate for more convenience. It has a power indicator LED and an adjustable sensitivity through a potentiometer. The module is based on the LM393 op-amp.

If you want to know rain sensor working then check our blog What is a Raindrop Sensor?

Rain Detector Sensor Applications:

  • The rain detector sensor used in automatic windshield wipers
  • This raindrop sensor module is used in smart agriculture.
  • This rain detection sensor is also used in home automation.

Package Includes:

  • 1 x Printed Circuit Board for Rain Water Collection
  • 1 x Control Board with LM393 Voltage Comparator
  • 1 x A 5-Wire Dupont Cable


Operating voltage 5V
Material  FR – 04
Voltage Comparator   LM393
Driver Size(mm) 32x15x9 (LxWxH)
Collector Board Size(mm) 54x40x1.5 (LxWxH)
Weight  50 grams

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

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1. How does a raindrop sensor work?

  • A raindrop sensor is essentially a board with nickel lines coated on it. It operates on the resistance principle. The rain Sensor module measures moisture using analog output pins and provides a digital output when a moisture threshold is exceeded.

2. What is a rain sensor module?

  • A rain sensor module is a simple tool for detecting rain. It can be used as a switch when a raindrop falls through the rain board, as well as to measure the intensity of the rain.

3. How do I connect a raindrop sensor to Arduino?

  • First, power up the raindrop sensor. Connect the raindrop sensor's ground pin to the Arduino UNO's GND pin and the positive power supply pin to the 3.3 / 5 Volts pin. Connect the digital pin D0 to any of the Arduino's digital pins.

4. Is the rain sensor analog or digital?

  • The rain sensor can output both analog and digital data. The AO (Analog Output) pin provides an analog signal ranging from 5V to 0V. The rain sensor can be used for all kinds of weather monitoring and translated into output signals and AO.

5. Why are rain sensors used?

  • Rain sensors are important components of automatic systems used in areas where rainfall is observed during irrigation months. These devices automatically turn off the irrigation system after a predetermined amount of rainfall and allow the system to resume its predetermined conditions once the device has dried.