Sound Detection Sensor Module

This module makes your electronics “hearing” capable. It uses a sensitive electret microphone to pick up sound waves in the air. The onboard LM393 comparator chip processes the signal; if the sound is louder than the limit you set using the blue potentiometer, the OUT pin sends a signal (Low/High) to your Arduino. It is perfect for making projects that react to claps, snaps, or loud alarms. It includes two LEDs: one for power and one that lights up when sound is detected.