Sound Detector Sensor Module with Microphone & LM393

The High Sensitivity Sound Detector Sensor Module is an ultra-reliable, compact audio monitoring solution engineered to add voice or noise-triggered automation into your hardware builds. Driven by a high-gain electret condenser microphone capsule paired with an LM393 voltage comparator IC, this versatile board tracks ambient acoustic levels in real time. The breakout module incorporates a convenient dual-signal layout: an Analog Output (AO) to pass raw voltage waves directly into a microcontroller's ADC, and a Digital Output (DO) that switches instantly when ambient noise surpasses your preset target. Output tuning is managed via an onboard high-precision multi-turn trimmer potentiometer. Operating on a standard 3.3V to 5V DC supply, it is the definitive hardware pick for DIY clap switches, security alarm triggers, voice-activated smart lamps, smart pet monitoring nodes, and school robotics projects driven by Arduino, ESP32, or Raspberry Pi.

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Tags sound sensor module microphone detection module analog digital sound sensor sound detector module microphone sensor board clap switch module voice detection sensor lm393 sound module

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Product Details :

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Made In :	India

The Sound Sensor Module is a versatile microphone-based detection module designed to sense sound levels and convert them into electrical signals. It features both analog and digital outputs, allowing flexible integration with microcontrollers like Arduino, ESP32, and Raspberry Pi. With an onboard adjustable potentiometer, you can set sensitivity levels to detect claps, knocks, or ambient noise, making it ideal for interactive and automation projects.

Key Features

Built-in electret microphone for sound detection
Dual output: Analog (A0) and Digital (D0)
Adjustable sensitivity via onboard potentiometer
Onboard comparator (e.g., LM393) for digital triggering
LED indicators for power and signal detection
Easy interface with Arduino, ESP32, Raspberry Pi
Compact and lightweight design

Technical Specifications

Parameter	Specification
Sensor Type	Microphone (Electret)
Operating Voltage	3.3V – 5V
Output Type	Analog + Digital
Comparator IC	LM393 (commonly used)
Sensitivity	Adjustable via potentiometer
Interface	4-pin (VCC, GND, A0, D0)
Detection Range	Depends on sensitivity setting
Indicator	Power & Output LED