Rain Drop Sensor Module with LM393 Comparator for Arduino

Overview & Features Whether you are building a custom IoT weather station or designing an automated smart home system that closes windows during a storm, the Arduino Compatible Rain Drop Sensor Module provides a simple and reliable way to detect moisture and rainfall. This two-part system consists of a large conductive moisture sensing pad and a dedicated control board driven by the highly stable LM393 voltage comparator. Available at Tomson Electronics, this module features a high-quality FR-04 double-sided sensing board treated with a nickel-plated finish to prevent rapid oxidation and extend its lifespan when exposed to outdoor weather conditions. The control board provides dual output modes: a digital output (DO) for a simple high/low rain trigger, and an analog output (AO) that allows your microcontroller to measure the exact intensity of the rainfall. Sensitivity can be easily fine-tuned using the onboard potentiometer. Also searched as: arduino rain sensor module, water drop detector for smart agriculture, lm393 weather station moisture sensor, analog digital rain detection board, automated wiper sensor. Technical Specifications Operating Voltage: 3.3V to 5V DC Comparator Chip: LM393 (Highly stable) Outputs: Digital Output (DO) and Analog Output (AO) Sensing Board Material: FR-04 Double-Sided PCB with Anti-Oxidation Nickel Plating Sensitivity Adjustment: Onboard blue potentiometer LED Indicators: Power Indicator (Red) and Digital Output Indicator (Green) Control Board

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