HW-496 microphone amplifier sound module MIC microphone module

HW-496 microphone amplifier sound module

Features:

• HW-496 microphone amplifier sound module 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.
• Sensitivity is adjustable (blue digital potentiometer adjustment in the figure)
• Working voltage 3.3V-5V
• Output form Digital switching output (0 and 1 high and low level)
• With fixing bolt holes for easy installation
• Module interface description (4-wire system)
• VCC external 3.3V-5V voltage (can be directly connected to 5v microcontroller and 3.3v microcontroller)
• GND external GND
• DO small board digital output interface (0 and 1)

Instructions for use:

• The sound module is most sensitive to the ambient sound intensity and is generally used to detect the sound intensity of the surrounding environment.
• When the ambient sound intensity reaches the set threshold, the DO port outputs a high level. When the ambient sound intensity exceeds the set threshold, the module D0 outputs a low level;
• The small-plate digital output D0 can be directly connected to the single-chip microcomputer, and the high-low level is detected by the single-chip microcomputer, thereby detecting the sound of the environment;
• The small board digital output DO can directly drive the store relay module, which can form a voice control switch;