Feature

●Instructions for use
●1 The sound module is most sensitive to the ambient sound intensity and is generally used to detect the sound intensity of the surrounding environment.
●2 When the ambient sound intensity reaches the set threshold, OUT outputs a high level. When the ambient sound intensity exceeds the set threshold, the module OUT outputs a low level;
●3 small-plate digital output OUT can be directly connected with the single-chip microcomputer, and the high-low level is detected by the single-chip microcomputer, thereby detecting the sound of the environment;
●4 can not be directly controlled by the relay module


Description

Product features:
1 It can detect the sound intensity of the surrounding environment. Note: This sensor can only recognize the presence or absence of sound (according to the vibration principle). It cannot recognize the size of the sound or the sound of a specific frequency
2 Sensitivity is adjustable (blue digital potentiometer adjustment in the figure)
3 working voltage 3.3V-5V
5 Output form Digital switching output (0 and 1 high and low level)
6 Fixed bolt holes for easy installation
7 small board PCB size: 3.6cm * 1.9cm
Module wiring instructions
1 VCC external 3.3V-5V voltage (can be directly connected to 5v microcontroller and 3.3v microcontroller)
2 GND external GND
3 OUT small plate switch output interface (0 and 1)