Treedix 10pcs High Sensitivity Sound Microphone Sensor Detection Module Control Switch Compatible with Arduino PIC AVR

Specification:

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 board switch output interface (0 and 1)

Instructions for use:
1. When the ambient sound intensity of the module does not reach the set threshold, OUT outputs a high level, and when the ambient sound intensity exceeds the set threshold, the module OUT outputs a low level
2. The digital output OUT of the small board can be directly connected to the single-chip microcomputer, and the high and low levels are detected by the single-chip microcomputer, thereby detecting the sound of the environment
3. The digital output OUT of the small board can directly drive the relay module of our store, which can form a voice-activated switch