YL-83 Raindrop Sensor Module for Arduino/Raspberry Pi 🌧️

The YL-83 Raindrop Sensor Module is a reliable electronics component designed to detect rainfall and measure rain intensity for Arduino, Raspberry Pi, and other microcontroller platforms. It features both digital (DO) and analog (AO) outputs, enabling simple rain detection (on/off) or proportional moisture/rain intensity measurement via voltage levels—ideal for weather stations, smart irrigation, and environmental monitoring modules.

Key Features 🔧

• Durable sensing plate: High-quality FR-4 double-sided PCB, large area 5.0 × 3.8 cm, with nickel-plated surface for superior oxidation resistance, conductivity, and longevity.
• Adjustable sensitivity: Onboard potentiometer for precise threshold tuning.
• Dual outputs: Digital switch output DO (TTL 0/1) and analog AO voltage output for intensity measurement.
• Easy installation: Fixed bolt hole for secure mounting.
• Clean signal, strong drive: Comparator output delivers a clean waveform with driving capability of > 15 mA.
• LM393 wide-voltage comparator: Stable, noise-resistant detection.
• Wide operating voltage: 3.3 V to 5 V for direct use with Arduino, Raspberry Pi (via ADC), ESP32, STM32, and similar microcontrollers.
• Sensor area dimensions: 50 × 38 × 10 mm.

How It Works ⚙️

Power the module at 5 V (or 3.3 V). When the sensing plate is dry, the DO output is at a high level and the switch indicator LED is off. When water droplets bridge the conductive traces, the DO output goes low and the indicator LED turns on. After the sensor dries or is wiped, the output returns to high.

Output Modes 🔌

• Digital Output (DO): TTL logic (0/1) for simple rain detection. Connect to a digital input pin (e.g., D2) on your Arduino or to a GPIO (with appropriate voltage compatibility) on other boards.
• Analog Output (AO): Proportional voltage for rain intensity. Connect to an analog input (e.g., A0) on your microcontroller. On Raspberry Pi, use an external ADC module.

Quick Start ✅

• Connect VCC to 3.3–5 V and GND to ground.
• Wire DO to a digital input for rain/no-rain detection, or AO to an analog input for intensity measurement.
• Adjust the onboard potentiometer to set the DO switching threshold.

Package Includes 📦

• Rain Sensor (sensing plate)
• Sensor comparator circuit output (LM393 module)
• Jumper Cables

Why Choose This Module? 🌟

• Optimized for Arduino, compatible with Raspberry Pi (with ADC), and other microcontroller platforms.
• Ideal for DIY and professional electronics projects requiring reliable rain detection and measurement.