ADIY Rain Drop Sensor Module

The ADIY Rain Drop Sensor Module is a simple rain and water detection device designed for weather monitoring and automation projects. It consists of a conductive sensing plate and an LM393-based comparator module that converts moisture levels into analog and digital signals. As water accumulates on the sensing surface, conductivity increases, allowing the module to detect rainfall intensity and trigger automated responses. The sensor is widely used with Arduino, ESP32, Raspberry Pi, and other embedded systems for applications such as automatic irrigation control, rain alarms, environmental monitoring, and smart weather stations.

Technical Specifications:

• Product Name: ADIY Rain Drop Sensor Module
• Sensor Type: Rain / Water Detection Sensor
• Detection Method: Conductive rain sensing plate
• Comparator IC: LM393
• Operating Voltage: 3.3V – 5V DC
• Output Types:
  • Digital Output (DO)
  • Analog Output (AO)

Features:

• Detects rain, water droplets, and moisture on the sensing plate
• Provides both analog and digital outputs
• Adjustable sensitivity using onboard trimmer potentiometer
• LM393 voltage comparator for reliable threshold detection
• Easy integration with microcontroller platforms

Applications:

• Weather monitoring stations
• Smart irrigation systems
• Automatic windshield wipers
• Rain alarm systems
• IoT environmental monitoring