Product Overview
The microphone sound sensor module is designed to detect sound levels using an onboard electret condenser microphone. It converts sound vibrations into electrical signals which are then processed by the onboard comparator circuit. The module provides both analog and digital outputs, thereby allowing detection of sound intensity or simple sound threshold triggering.
The onboard potentiometer allows adjustment of sensitivity to suit different environments. This module is suitable for automation systems alarm circuits and Arduino learning projects.
Key Features
• Sensor Type: Electret condenser microphone
• Output Modes: Analog and digital output signals
• Sensitivity: Adjustable threshold using onboard potentiometer
• Comparator: LM393 onboard comparator circuit
• Indicator: LED indicator for sound detection
• Compatibility: Works with Arduino PLC trainer boards and microcontrollers
• Compact Design: Small PCB for easy integration
Technical Specifications
• Product type: Microphone sound sensor module
• Model: HW 485 or equivalent
• Operating voltage: 3.3 V to 5 V DC
• Output type: Analog AO and digital DO
• Sensitivity control: Adjustable potentiometer
• Detection method: Sound level detection
• Interface pins: VCC GND DO AO
• Weight: 0.004 kg
• Dimensions: 4.5 cm × 1.6 cm × 1.2 cm
Suitable for
• Clap switch projects
• Sound activated alarms
• Automation noise detection
• Arduino learning experiments
• Robotics sound response systems
• Educational laboratory projects
Package Includes
• One microphone sound sensor module
Installation Notes
Connect VCC to 3.3 V or 5 V and GND to ground. Use the DO pin for digital threshold detection or the AO pin for analog sound level measurement. Adjust the onboard potentiometer to set the desired sensitivity level.












