*Can detect the intensity of ambient sound, using Note: This sensor can only recognize the presence or absence of sound (vibration according to the principles of) does not recognize the size of the sound or the sound of a particular frequency *Sensitivity adjustable (shown in blue digital potentiometer adjustment) *Operating voltage: 3.3V-5V *Output form of digital switching output (0 and 1 high-low) *With the retaining bolt hole, convenient installation. *Small PCB board size: 3.2cm * 1.7cm Secong,module wiring instructions: *VCC external 3.3V-5V voltage (can be directly connected to 5v and 3.3v MCU MCU) *GND external GND * OUT small plate switch output interface (0 and 1) Third, instructions: *Sound module sound intensity most environmentally sensitive, generally used to detect the intensity of the ambient sound. *Module reach the set threshold environmental sound intensity, OUT output high, when the ambient sound level exceeds the set threshold, the module OUT output low; *Small plates OUT digital output can be directly connected to the microcontroller through the microcontroller to detect high and low, thereby detecting a sound environment; Weight: 3g Working voltage:DC 3.3-5V Small PCB board size: 3.2cm * 1.7cm Main chip: LM393, Electret condenser microphone Package Included: 1 x Sound Detection Sensor Module Package Including 1 x Sound Detection Sensor Module
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