{"product_id":"sound-sensor-module-lm393-microphone","title":"Sound Sensor Module (LM393, Microphone)","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe \u003cstrong\u003eSound Sensor Module\u003c\/strong\u003e is a highly versatile and easy-to-use board designed to detect the intensity of ambient sound in its environment. At its core, the module utilizes a sensitive electret condenser microphone combined with an LM393 voltage comparator chip, allowing it to instantly convert acoustic sound waves into a clean digital electrical signal.\u003c\/p\u003e\n\n\u003cp\u003eAvailable at Tomson Electronics, this module is perfect for triggering actions based on noise levels. It features an onboard multi-turn potentiometer (preset) that lets you manually adjust the sound detection threshold. When the ambient noise (like a hand clap, a door slamming, or a dog barking) exceeds your set threshold, the sensor's digital output pin drops LOW, signaling your microcontroller to take action.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePeople also search for:\u003c\/strong\u003e mic sensor arduino, lm393 sound sensor, clap switch module, microphone sensor board, audio detection module.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicrophone Type:\u003c\/strong\u003e Electret Condenser Microphone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComparator Chip:\u003c\/strong\u003e LM393\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 3.3V to 5V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Type:\u003c\/strong\u003e Digital Output (DO) - outputs LOW when sound threshold is reached\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensitivity Adjustment:\u003c\/strong\u003e Built-in potentiometer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndicators:\u003c\/strong\u003e Onboard Power LED and Output Status LED\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCB Dimensions:\u003c\/strong\u003e Approx. 32mm x 17mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eApplications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHome Automation:\u003c\/strong\u003e Building classic \"clap-on, clap-off\" smart switches for room lighting or appliances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecurity Systems:\u003c\/strong\u003e Serving as an intrusion detector by triggering an alarm when the sound of breaking glass or forced entry is detected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInteractive Installations:\u003c\/strong\u003e Creating sound-reactive LED light shows, animatronics, or interactive art displays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobotics:\u003c\/strong\u003e Programming autonomous robots to navigate toward or away from loud noise sources.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eFrequently Asked Questions (FAQ)\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this module record voice audio or recognize speech commands?\u003c\/strong\u003e\u003cbr\u003e\nA: No. This basic sensor is only designed to detect the \u003cem\u003evolume\u003c\/em\u003e (amplitude) of sound and trigger a digital signal when a specific loudness threshold is crossed. It does not have the processing capability or bandwidth to record actual audio files or recognize words. For voice recognition, you would need an I2S microphone or a dedicated voice recognition module.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I tune the sensor to only detect loud claps?\u003c\/strong\u003e\u003cbr\u003e\nA: Connect the sensor to power (5V and GND). Use a small screwdriver to turn the blue potentiometer. While turning, clap your hands at the volume you want to detect. Adjust the dial until the onboard Output LED only lights up when you clap loudly, ignoring normal background talking.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I measure exact Decibel (dB) levels with this?\u003c\/strong\u003e\u003cbr\u003e\nA: No. The LM393 comparator provides a simple digital ON\/OFF signal based on a relative threshold, not calibrated analog data. It cannot provide an accurate numeric decibel reading.\u003c\/p\u003e\n\n\u003ch5\u003ePackage Includes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Sound Sensor Module (LM393)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomson Electronics","offers":[{"title":"Default Title","offer_id":48318367301870,"sku":"SEN-26745","price":39.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2132\/9029\/products\/SoundSensorModuleSmallTomsonElectronics-2.jpg?v=1633594207","url":"https:\/\/www.tomsonelectronics.com\/products\/sound-sensor-module-lm393-microphone","provider":"Tomson Electronics ","version":"1.0","type":"link"}