ACE 6461 LM393 Sound Detection Sensor Module

This module detects whether the sound has exceeded a threshold value. The sound is detected via a microphone and fed into 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. It cannot identify the size or the specific frequencies of sound.