Small Microphone Sound Sensor Detection Module

The Small Microphone Sound Sensor Detection Module is an electronic sound detection module designed to sense environmental audio signals and convert them into electrical outputs for microcontroller-based systems. The module uses a high-sensitivity microphone capable of detecting sound intensity changes with good accuracy.

The sensor provides two types of outputs. The Analog Output (AO) delivers a continuous voltage signal proportional to the detected sound level, making it suitable for real-time sound analysis and audio monitoring applications. The Digital Output (DO) provides a high or low logic signal when the sound level exceeds a preset threshold value, allowing easy implementation of sound-triggered systems.

The module includes an onboard comparator circuit with adjustable threshold detection and indicator LEDs for power and output status. Its compact design and simple interface make it suitable for Arduino, AVR, PIC, Raspberry Pi, ESP32, STM32, and other embedded systems.

This module is commonly used in sound-activated switches, security alarms, noise monitoring systems, smart home projects, and educational electronics applications.

Specifications

• Product Type: Microphone Sound Sensor Module
• Operating Voltage: 5V DC
• Outputs:
  • AO: Analog output signal
  • DO: Digital threshold output signal
• Microphone Type: High-sensitivity condenser microphone
• Threshold Detection: Adjustable comparator output
• Mounting Hole Diameter: 3mm
• Indicator LEDs:
  • Power indicator LED
  • Comparator output indicator LED
• Compatibility: Arduino, AVR, PIC, Raspberry Pi, ESP32, STM32, and other MCUs

Applications

• Sound detection systems
• Clap switch projects
• Noise level monitoring
• Security alarm systems
• Voice-activated devices
• Smart home automation
• Audio signal monitoring
• Interactive robotics projects
• Environmental sound analysis
• Educational electronics experiments