Embedded Files
Detect sound levels easily with the LM393 Sound Sensor Module. Features adjustable sensitivity and digital/analog outputs for Arduino and DIY projects.
Description
The LM393 Sound Sensor Module is a simple yet powerful electronic component designed to detect the presence and intensity of sound in its environment. It uses a small microphone (electret) to pick up sound waves and converts them into electrical signals. These signals are processed by an onboard LM393 comparator chip.
This module is perfect for projects that need to respond to claps, whistles, or loud noises. It features a built-in potentiometer (a small screw dial) that allows you to manually adjust the sensitivity, making it easy to set exactly how loud a sound needs to be to trigger an output. It provides both a Digital Output (DO) for simple "On/Off" detection and an Analog Output (AO) for measuring real-time sound intensity.
Features
Dual Output Modes: Provides both Digital (DO) and Analog (AO) signal outputs.
Adjustable Sensitivity: Features an onboard potentiometer to set the sound threshold.
Status Indicators: Built-in LED lights up when sound is detected and power is on.
Compact Design: Small footprint makes it easy to fit into tight DIY enclosures.
Easy Installation: Includes a standard M3 bolt hole for secure mounting.
Plug-and-Play: Compatible with Arduino, Raspberry Pi, ESP32, and other microcontrollers.
Applications
Sound-Activated Switch: Turn lights or fans on/off with a clap.
Security Systems: Detect break-ins or loud disturbances in a room.
Voice-Activated Projects: Start a motor or change an LED color using voice commands.
Smart Home Automation: Use as a sensor to monitor environmental noise levels.
Interactive Toys: Create robots or gadgets that react to sound or music.
Parameters
Operating Voltage: 3.3V to 5V DC
Main IC: LM393 Voltage Comparator
Microphone Type: Electret Microphone
Output Signal: Digital (0 or 1) and Analog (voltage level)
Operating Current: ~4mA to 5mA
Dimensions: 32mm x 17mm x 15mm
Detection Frequency: 50Hz to 20kHz
External Links
Google Sites
Report abuse