This tiny breakout board features the ADMP401 MEMs microphone. One of the key advantages to this breakout and microphone is the bottom ported input. This means the microphone's input can fit flush against the enclosure of your project. Plus you will not...

This sound sensor only requires 3 pins, +5, GND and TTL output pin. When there is sound present, it will output a low voltage signal It can not distinguish the dB of sound, just the presence of sound or not.