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The sound detection sensor module KY-038 LM393 for Arduino detects when sound exceeds a certain threshold. The sound is sensed through a microphone and fed into an LM393 op-amp.
The setting point for the sound level is adjusted via an onboard potentiometer.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.
