{"product_id":"lm393-sound-sensor-module-adjustable-sensitivity-mic","title":"LM393 Sound Sensor Module | Adjustable Sensitivity Mic","description":"\u003ch1\u003eLM393 Sound Sensor Module with Adjustable Threshold\u003c\/h1\u003e\n\u003cp\u003eThe LM393 Sound Sensor Module is a high-sensitivity sound detection board that converts audio signals into digital and analog outputs. It uses an electret microphone and LM393 comparator to trigger a signal when sound exceeds a preset threshold, adjustable via onboard potentiometer. Ideal for clap switches, voice-activated projects, and noise monitoring.\u003c\/p\u003e\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) and Analog (AO)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMicrophone\u003c\/td\u003e\n\u003ctd\u003eElectret condenser\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eComparator IC\u003c\/td\u003e\n\u003ctd\u003eLM393\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003eAdjustable via potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e32 mm × 17 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/clap-switch-kit-with-arduino-uno-learn-pattern-detection-and-debounce\"\u003eClap switch to toggle lights or appliances\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-sound-activated-led-kit\"\u003eSound-activated LED strip animations\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eVoice or sound triggered camera shutter\u003c\/li\u003e\n  \u003cli\u003eNoise level monitor with analog output to microcontroller ADC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis module works with any 3.3V or 5V microcontroller, including Arduino Uno, Nano, Mega, ESP8266, ESP32, and Raspberry Pi. The digital output connects directly to a GPIO pin, while the analog output can be read via ADC for varying sound levels.\u003c\/p\u003e\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect VCC to 5V (or 3.3V), GND to GND, DO to a digital input pin for threshold-based detection, or AO to an analog input for sound intensity reading. Ensure the potentiometer is adjusted until the DO LED triggers at the desired sound level.\u003c\/p\u003e\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\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes, the LM393 sound sensor module works directly with Arduino Uno at 5V. Connect DO to digital pin 2 and use digitalRead() to detect sound events.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I detect sound intensity with this module?\u003c\/summary\u003e\u003cp\u003eYes, the analog output (AO) provides a voltage proportional to the sound level. Connect to an analog pin and use analogRead() to measure relative loudness.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I adjust the sensitivity?\u003c\/summary\u003e\u003cp\u003eTurn the onboard potentiometer clockwise to increase sensitivity (triggers at quieter sounds) and counterclockwise to decrease sensitivity. The DO LED lights up when sound is detected.\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":53445022613869,"sku":"CDN-0746","price":40.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_fadf2286-c39c-43b6-a5fc-cedede475976.jpg?v=1781512876","url":"https:\/\/compoden.com\/products\/lm393-sound-sensor-module-adjustable-sensitivity-mic","provider":"Compoden","version":"1.0","type":"link"}