sound sensor / sensor suara arduino

Can detect the intensity of the sound environment, use note: the sound sensor can identify the presence of (according to the principle of vibration) or a particular frequency of sound does not recognize the volume of the sound
Sensitivity adjustable digital potentiometer to adjust (blue)
3-5 V working voltage 3.3 V
Output form digital switch output (1 s and 0 s + v)
Has a fixed bolt hole, convenient installation
Small board PCB size: 3.2 cm * 1.7 cm
Module wiring instructions

VCC voltage is 3.3 V to 5 V converter (which can be directly connected to 5 V single-chip microcontroller and 3.3 V)
GND external GND
OUT of small plate switch output interface (0 and 1)