KY-038 microphone amplifier module sound module MIC module sound sensor voice module

This module uses professional microphone amplifier IC, which has low output noise, small size, high sensitivity, fixed gain of 20dB, and can support 2 power supply modes of 3.3v and 5 V.

Specifications:

• Electret condenser microphone (ECM) sensor with high sensitivity
• Power indicator light
• Comparator output indicator
• AO, real-time microphone voltage signal output
• DO, high/low level signal output
• Analog output
• Threshold flip level output
• Adjust the sensitivity by potentiometer