Sound/Microphone Detection Sensor Module 4-Pin (Analog & Digital Sound Sensor)

The Sound/Microphone Detection Sensor Module 4-Pin is a compact audio sensing module designed to detect ambient sound and provide both analog and digital outputs for embedded applications. It features an onboard electret microphone with signal amplification and a comparator circuit that generates a digital output when the detected sound exceeds an adjustable threshold. The module is ideal for Arduino, ESP32, Raspberry Pi, STM32, and other microcontroller platforms used in sound-activated systems, noise monitoring, alarms, and interactive electronics projects.

Key Features -

• Built-in electret microphone for sound detection

• Digital output with adjustable sound threshold

• Analog output for sound intensity measurement

• Adjustable sensitivity using onboard potentiometer

• Fast response to changes in ambient sound levels

• 4-pin interface for easy microcontroller integration

• Low power consumption for embedded applications

• Compatible with Arduino, ESP32, Raspberry Pi, STM32, and other development boards

• Compact PCB module for easy installation

• Suitable for sound-triggered automation and monitoring projects

Specifications -

• Product type - Sound Detection Sensor Module

• Sensor type - Electret Microphone Detection Module

• Operating voltage - 3.3V to 5V DC (Typical)

• Output signals - Digital and Analog

• Interface pins - 4

• Sensitivity - Adjustable via onboard potentiometer

• Response time - Fast sound detection

• Package / Mounting type - Compact PCB Module

Applications -

• Sound-activated lighting systems

• Noise level monitoring

• Security alarm systems

• Voice and clap switch projects

• Interactive electronic devices

• Home automation systems

• Robotics and embedded control projects

• Educational electronics and sensor experiments