The Raindrop Detection Sensor Module is designed for rain detection and measuring rainfall intensity. This sensor is widely used for weather monitoring applications, providing output signals through AO (Analog Output).
The module consists of a printed circuit board (PCB) that "collects" raindrops. As the raindrops accumulate on the PCB, they form paths of parallel resistance that are detected by the onboard op-amp. The more water (lower resistance), the lower the voltage output. Conversely, the less water (higher resistance), the higher the output voltage on the analog pin. For example, a completely dry board will produce a 5V output.
This module features a separate rain board and control board for added convenience, a power indicator LED, and an adjustable sensitivity via a potentiometer. It is built around the LM393 op-amp for stable performance.
Features:
Utilizes the LM393 wide voltage comparator for reliable performance
Provides both digital and analog outputs for versatile applications
LED indicator to show output status
Fully compatible with Arduino
TTL compatible for easy integration with other systems
Made with high-quality FR-04 double material, with a large surface area of 5.5 x 4.0 cm
Nickel-plated for improved oxidation resistance, electrical conductivity, and longer lifespan
Clean signal output with strong driving capability (up to 15 mA)
Adjustable sensitivity via an onboard potentiometer
Digital switch output (0 and 1) and analog AO voltage output
Equipped with a fixed bolt hole for easy installation
Package Includes:
1 x Printed Circuit Board for Rain Water Collection
1 x Control Board with LM393 Voltage Comparator
1 x 5-Wire Dupont Cable