Sound sensor module โมดูลเซ็นเซอร์เสียง

Sound sensor module โมดูลเซ็นเซอร์เสียง ใช้สำหรับตรวจจับเสียง หากมีเสียงดังเกินกว่าที่ได้ปรับตัวต้านทานไว้ เอาต์พุตจากช่อง OUTPUT จะได้เป็นลอจิก 1 หรือ HIGH รองรับแรงดันไฟฟ้า 3.3V - 5V ตามตัวอย่าง :

A product feature:

1. It 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.
2. Sensitivity is adjustable (blue digital potentiometer adjustment 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: 3.2cm * 1.7cm

Two module wiring instructions

1.VCC external 3.3V-5V voltage (can be directly connected to 5v microcontroller and 3.3v microcontroller)
2.GND external GND
3.OUT small board switch output interface (0 and 1)

Three instructions

1. The sound module is most sensitive to the ambient sound intensity and is generally used to detect the sound intensity of the surrounding environment.
2. When the ambient sound intensity reaches the set threshold the OUT outputs a high level. When the ambient sound intensity exceeds the set threshold the module OUT outputs a low level;
3. The small board digital output OUT can be directly connected to the microcontroller through the single
The slicer detects the high and low levels thereby detecting the sound of the environment;




code:
/*
* test sound module
* Complete Project Details Arduinoshop99
*/

int ledPin=13;
int sensorPin=7;
boolean val =0;

void setup(){
pinMode(ledPin OUTPUT);
pinMode(sensorPin INPUT);
Serial.begin (9600);
}

void loop (){
val =digitalRead(sensorPin);
Serial.println (val);
// when the sensor detects a signal above the threshold value LED flashes
if (val==HIGH) {
digitalWrite(ledPin HIGH);
}
else {
digitalWrite(ledPin LOW);
}
}