The Analog Sound Sensor Microphone Module detects sound using a high-sensitivity electret condenser microphone. The module converts sound vibrations into electrical signals and outputs them to a microcontroller. It includes an LM393 comparator and an adjustable potentiometer that allows you to set the sensitivity level for sound detection. The sensor can provide an analog output for measuring sound intensity and a digital output that triggers when sound exceeds a threshold. This module is widely used in clap switches, sound-activated lighting systems, noise monitoring devices, security alarms, and smart automation projects. Key Features High-sensitivity electret microphone Adjustable sound detection sensitivity Analog and digital signal output Onboard LM393 comparator for fast response Power and signal indicator LEDs Compatible with Arduino, ESP32, ESP8266, and other microcontrollers Technical Specifications Parameter Value Operating Voltage 3.3V – 5V Output Type Analog (AO) and Digital (DO) Comparator IC LM393 Microphone Type Electret Condenser Microphone Sensitivity −42 ±3 dB Current Consumption ~0.5 mA Pin Configuration Pin Description VCC Power Supply (3.3V–5V) GND Ground AO Analog Output DO Digital Output What’s in the Box 1 × Analog Sound Sensor Microphone Module
