{"product_id":"rain-drop-sensor-module-digital-analog-output-compoden","title":"Rain Drop Sensor Module – Digital \u0026 Analog Output | Compoden","description":"\u003ch1\u003eRain Drop Sensor Module with Analog and Digital Output\u003c\/h1\u003e\n\n\u003cp\u003eThe rain drop sensor module detects rain or water droplets by measuring changes in resistance on its nickel-coated sensing pad. It provides both a digital signal (triggered when moisture exceeds a set threshold) and an analog output proportional to the amount of water. Ideal for automatic weather stations, irrigation controllers, and water leak detectors, it connects easily to microcontrollers and single-board computers.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V - 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eDigital (DO) + Analog (AO)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eComparator Chip\u003c\/td\u003e\n\u003ctd\u003eLM393\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSensing Pad Dimensions\u003c\/td\u003e\n\u003ctd\u003e54mm x 40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eModule Dimensions\u003c\/td\u003e\n\u003ctd\u003e32mm x 14mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003e4-pin (VCC, GND, DO, AO)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAutomatic rain alarm that buzzes when precipitation starts\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-soil-moisture-auto-watering\"\u003eSmart irrigation system that pauses watering when soil moisture is high\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eDIY automatic car windshield wiper control\u003c\/li\u003e\n  \u003cli\u003eRoof leak detector with remote notification via Arduino and Wi‑Fi\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe module works with all 3.3V and 5V microcontrollers that have digital GPIO and analog input pins, including Arduino Uno, Nano, Mega, ESP8266, ESP32, and Raspberry Pi (with external ADC). Its onboard comparator makes digital readout straightforward even on boards without analog inputs, while the analog pin gives detailed moisture levels for threshold‑based projects.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect VCC to 5V or 3.3V and GND to common ground. Use the DO pin on a digital input for simple rain\/no‑rain detection, adjusting the blue potentiometer to set the trigger threshold. For moisture level measurement, connect the AO pin to an analog input. Avoid submerging the entire sensing pad underwater; it is intended for surface rain detection.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, it works with 5V Arduino boards. Connect DO to a digital pin and AO to an analog pin for full rain detection and level monitoring.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I adjust the rain sensitivity?\u003c\/summary\u003e\u003cp\u003eThe module has a potentiometer; turn it clockwise to reduce sensitivity (requires more water to trigger) or counterclockwise to increase sensitivity.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan the sensing pad be left outside permanently?\u003c\/summary\u003e\u003cp\u003eWhile designed for outdoor use, prolonged exposure to UV and dust can degrade the nickel coating. Cover or remove when not in use to extend sensor life.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445024874861,"sku":"CDN-0773","price":45.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_ebf9194e-d6ab-413a-a88f-96becd7cc864.jpg?v=1781512920","url":"https:\/\/compoden.com\/products\/rain-drop-sensor-module-digital-analog-output-compoden","provider":"Compoden","version":"1.0","type":"link"}