Rain Drop Detection Sensor Module (Detection Plate + Comparator Board)

The Rain Drop Detection Sensor Module is a two-part sensor made up of a copper-traced detection plate and a separate comparator driver board, designed to detect rain or water droplets and trigger an alert. It is widely used in weather stations, automatic window closers, and irrigation systems that need to react to rainfall.

Key features:

• Detection Plate: A nickel-plated copper trace grid that changes conductivity when water droplets bridge the tracks.
• Dual Output: Provides both a digital (D0) trigger output and an analog (A0) output proportional to how wet the plate is.
• Adjustable Sensitivity: Onboard potentiometer sets the digital trigger threshold to match the application.
• Status LEDs: Power and digital-trigger indicator LEDs make wiring and testing straightforward.
• Easy Integration: Compatible with Arduino, ESP8266/ESP32, and other 5V-logic microcontrollers.