Product Features:
1 can detect the ambient sound level, Caution: This sensor can identify the presence or absence of sound (vibration principle based) can 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 format digital switching outputs (0 and 1 high-low)
6 with fixed bolt hole for easy installation
7 small plates PCB size: 3.2cm * 1.7cm
module wiring instructions
1 VCC external 3.3V-5V voltage (5v microcontroller and can be directly connected to 3.3v MCU)
2 GND connect GND
3 OUT small plate switch output interfaces (0 and 1)
instructions
A voice module sound intensity most sensitive to the environment, usually used to detect ambient sound intensity.
2 module sound intensity in the environment to reach the threshold value, OUT output high, when the external ambient sound intensity exceeds the threshold, the module OUT output low;
3 small plates Digital output OUT can be directly connected with the microcontroller through the microcontroller to detect high and low, thereby to detect ambient sound;
4 small plates digital outputs can directly drive OUT OUR relay module, which can be composed of a voice-activated switch;
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