WWZMDiB High Sensitivity Sound Microphone Sensor Detection Module for Arduino AVR PIC ?2Pcs?

? [Description] · Can detect the intensity of environmental sound. Precautions for use: The sensor can only identify the existing sound (according to the principle of vibration), not the size of the sound or the sound of a specific frequency. · Sound module is sensitive to the environment and is generally used to detect the intensity of environmental sound. · If the module cannot reach the sound threshold set in the environment, the OUT output high level. When the ambient sound level exceeds the set threshold, the module OUT output low level; · The digital output OUT on the small board can be directly connected to the single chip microcomputer, which can detect the sound environment by detecting the high and low levels. · The digital output OUT on the small board can directly drive the relay module and play the role of voice-controlled switch; ? Operating voltage 3.3V-5V ? Output form: digital switch output (0, 1 high and low level) ? Adjustable sensitivity (adjusted by blue digital potentiometer) ? with fixing bolt holes for easy installation ?? Module Wiring Instructions ? ·VCC external 3.3V-5V voltage (can be directly connected to 5v MCU and 3.3v MCU) ·GND Connects to GND ·OUT: switch output interface (0 and 1)