{"product_id":"sound-sensor-detection-module-arduino-avr-pic-lm393","title":"Sound Sensor Detection Module for Arduino AVR PIC – LM393","description":"\u003ch2\u003eHigh Sensitivity Sound Microphone Sensor Detection Module\u003c\/h2\u003e\n\u003cp\u003eTake your Arduino, AVR, or PIC projects to the next level with this compact, high-sensitivity sound detection sensor module. Featuring the reliable \u003cstrong\u003eLM393 comparator chip\u003c\/strong\u003e and an \u003cstrong\u003eelectret condenser microphone\u003c\/strong\u003e, this module accurately detects sound signals and outputs a clean digital switch signal — perfect for hobbyists, students, and engineers alike.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're building an acoustic-controlled lighting system, a sound-triggered alarm, or an intelligent vehicle, this sensor module delivers consistent and responsive performance in a tiny footprint.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMain Chip:\u003c\/strong\u003e LM393 with electret condenser microphone\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Voltage:\u003c\/strong\u003e DC 4–6V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 32mm × 17mm × 8mm (L × W × H)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle-channel digital signal output\u003c\/strong\u003e — outputs LOW level when sound is detected\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSignal output indicator LED\u003c\/strong\u003e lights up on detection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum detection distance:\u003c\/strong\u003e 0.5 meters\u003c\/li\u003e\n  \u003cli\u003eCompatible with Arduino, AVR, PIC, and most microcontroller platforms\u003c\/li\u003e\n  \u003cli\u003eIdeal for acoustic control lights, sound-triggered alarms (paired with photosensitive sensors), and sound detection applications\u003c\/li\u003e\n  \u003cli\u003eCompact and breadboard-friendly design\u003c\/li\u003e\n  \u003cli\u003e100% brand new condition\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Chip\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLM393, Electret Condenser Microphone\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 4–6V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle Channel Digital Switch (Active LOW)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Detection Distance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5 Meters\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBoard Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32mm × 17mm × 8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAcoustic-controlled lighting systems\u003c\/li\u003e\n  \u003cli\u003eSound-triggered alert or alarm systems\u003c\/li\u003e\n  \u003cli\u003eIntelligent robotic vehicles and automation\u003c\/li\u003e\n  \u003cli\u003eCombined sound + light sensor detection projects\u003c\/li\u003e\n  \u003cli\u003eArduino, AVR, and PIC microcontroller prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Sound Detection Sensor Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What microcontroller platforms is this sound sensor module compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This sound detection sensor module is compatible with a wide range of microcontroller platforms, including Arduino (Uno, Nano, Mega), AVR-based boards, PIC microcontrollers, Raspberry Pi (with appropriate logic level handling), and most other 3.3V–5V development boards. It outputs a standard digital LOW signal when sound is detected, making integration straightforward.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How sensitive is this sound sensor module and what is its detection range?\u003c\/h4\u003e\n\u003cp\u003eA: The module uses a high-sensitivity electret condenser microphone paired with the LM393 comparator chip, allowing it to detect sound events within a maximum distance of approximately 0.5 meters (about 20 inches). Sensitivity can typically be adjusted via the onboard trimmer potentiometer to suit your specific environment and project requirements.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What output does the module provide when it detects a sound?\u003c\/h4\u003e\n\u003cp\u003eA: When sound is detected, the module outputs a LOW (active low) digital signal on its output pin and simultaneously illuminates the onboard signal indicator LED. This makes it easy to monitor detection status both programmatically (via your microcontroller) and visually during prototyping and testing.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the operating voltage for this sensor module?\u003c\/h4\u003e\n\u003cp\u003eA: The sound detection sensor module operates on a DC supply voltage of 4V to 6V, making it fully compatible with standard 5V Arduino and AVR systems right out of the box. Always ensure your power supply falls within this range for reliable operation.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What microcontroller platforms is this sound sensor module compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This sound detection sensor module is compatible with a wide range of microcontroller platforms, including Arduino (Uno, Nano, Mega), AVR-based boards, PIC microcontrollers, Raspberry Pi (with appropriate logic level handling), and most other 3.3V–5V development boards. 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