PAM8403 5V Two-channel Stereo Mini Class-D 3W 3W Audio Amplifier

The LM393 Sound Detection Sensor Module for Arduino detects whether the sound has exceeded a threshold value. The sound is detected via a microphone and fed into an LM393 op-amp.

The sound level setpoint is set via an onboard potentiometer. When the sound level exceeds the setpoint, an LED on the module is illuminated and the output is sent low.

Note: This sensor only recognizes the availability of sound cannot identify the size of the sound or the specific frequencies of sound.

Technical Details

Operating Voltage: 3.3V to 5V
IC Chip: LM393
Length: 37.5 mm
Width: 17 mm
Height: 10 mm
Weight: 4 g

Features

Signal output indication.
Digital output.
Single-channel signal output.
Easy to install with bolt hole.
Low output and signal light when sound detected.

Applications :

Sound-activated Lighting: Used in systems where lights turn on or off based on sound or noise levels.
Security Systems: Detects sound as a trigger for alarms or alerts in security setups.
Voice-activated Projects: Ideal for DIY voice-controlled devices and automation.
Noise Monitoring: Used in environments requiring sound level monitoring or noise detection.
Robotics: Enables robots to respond to sound signals as a form of input.
Audio-sensitive Toys: Incorporated into toys that react to sound, such as clapping or speaking.