Sound Sensor Module KY-038

The sound detection sensor module detects the intensity of sound where the sound is detected via a microphone and fed into an LM393 op-amp. It comprises an onboard potentiometer to adjust the setpoint for sound level.

Specifications:

• Operating Voltage: 3.3V to 5V DC
• LM393 comparator with threshold preset
• PCB Size: 3.4cm * 1.6cm
• Induction distance: 0.5 Meter
• Operating current:  4~5 mA
• Microphone Sensitivity (1kHz): 52 to 48 dB