Schematic

A Product Features :

1 can detect the ambientSound intensity,MakeUse NOTE: This sensor can identify the presence or absence of sound ( based on the principle of vibration ) does not recognize the size of the sound or the sound of a specific frequency

2 adjustable sensitivity ( shown in blue digital potentiometer adjustment )

3 Operating voltage 3.3V-5V

5 Output form of digital switching outputs ( 0 and 1High and low)

6 with fixed bolt hole for easy installation

7 small PCB board size : 3.2cm * 1.7cm

Two module wiring instructions

1 VCC external 3.3V-5V voltage ( can be directly connected to 5v and 3.3v MCU MCU )

2 GND GND External

3 OUT small plate switch output inters ( 0 and 1 )

Three instructions

1SoundModule on the environmentSound intensityThe most sensitive and is generally used to detect the surroundingsSound intensity.

2 modulesAmbient sound intensity is notWhen the set threshold , OUT output high , when the external environmentSound intensityExceeds the set threshold, the module OUT output low ;

3 small plates OUT digital output can be directly connected to the microcontroller through the microcontroller to detect high and low , thereby detecting the environmentSound;

4 small plates digital outputs can directly drive OUT OUR relay module , which can be composed of aVoiceSwitch ;