3 tűs hang-hangérzékelő érzékelő modul, intelligens intelligens robot helikopter repülőgép fedélzeti autó arduino barkácskészlethez
3pin Voice Sound Detection Sensor Module Intelligent Smart Robot Helicopter Airplane Boart Car for arduino Diy Kit
一、Module description
1 It can detect the sound intensity of the surrounding environment. Note: This sensor can only identify the presence or absence of sound (according to the principle of vibration). It cannot identify the size of the sound or the sound of a specific frequency.
2 Adjustable sensitivity (adjusted by blue digital potentiometer in the figure)
3 Working voltage 3.3V-5V
5 Output form Digital switch output (0 and 1 high and low level)
6 with fixing bolt holes for easy installation
7 Small board PCB size: 3.4cm * 1.6cm
 
二、Module interface description (4-wire system)
1 VCC external 3.3V-5V voltage (can be directly connected to 5v microcontroller and 3.3v microcontroller)
2 GND external GND
3 DO small board digital output interface (0 and 1)
 
三、 instructions for use
1 The sound module is most sensitive to ambient sound intensity, and is generally used to detect the sound intensity of the surrounding environment.
2 When the ambient sound intensity does not reach the set threshold, the DO port outputs a high level, and when the ambient ambient sound intensity exceeds the set threshold, the module D0 outputs a low level;
3 The small board 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;
4 The small board digital output DO can directly drive the relay module of our store, which can form a sound control switch;
4000880417129 - sitai