HW-484 Sound Sensor Module

Description

About this item:

The HW-484 is a sound detection module designed for Arduino and microcontroller projects. It uses an electret microphone and LM393 comparator to sense sound levels and provide both digital and analog outputs.

Specifications & Features:

• Operating Voltage: 3.3V – 5V DC

• Operating Current: ~4–5 mA

• Sensor Type: Electret Microphone with LM393 Comparator

• Digital Output (DO): Logic LOW when sound is detected, HIGH otherwise

• Analog Output (AO): Voltage proportional to sound intensity (0–5 V)

• Sensitivity Adjustment: Onboard 10 kΩ potentiometer

• Induction Distance: Up to 0.5 meters

• Microphone Sensitivity: ~48–52 dB at 1 kHz

• PCB Dimensions: ~34 mm × 16 mm

• Comparator IC: LM393

• Pin Configuration: VCC, GND, DO (Digital Out), AO (Analog Out)

Applications:

• Sound level detection

• Voice-activated switches

• Security and monitoring systems

• Robotics (sound-controlled robots)

• Audio-sensitive interactive projects