Mikrofons (skaņas sensors)

Features:

• Size:32mm*17mm*8mm(length*width*height)
• Main chip:LM393, Electret condenser microphone
• Working voltage: DC 4-6V
• Signal output indication
• Single channel signal output
• The output effective signal is low level
• When there is sound, outputs low level and the signal light
• Can be used for Acoustic control light , give sound and light alarm working with Photosensitive sensor ,and sound control, sound detect
• Circuit board output switch quantity
• Note: The Maximum induction distance is 0.5

For sound detection module has two outputs:

1. AO, analog output, real-time output voltage signal of the microphone
2. DO, when the sound intensity reaches a certain threshold, the output high and  low signal

• Digital Output:
  int Led=13;//define LED  interface
  int buttonpin=3 //Define D0 Sensor   Interface
  int val;//define numeric variables val
  void setup()
  {
  pinMode(Led,OUTPUT);// Define LED as output interface
  pinMode(buttonpin,INPUT);//Define D0 Sensor as output Interface
  }
  void loop()
  {
  val=digitalRead(buttonpin);//digital interface will be assigned a value of 3 to  read val
  if(val==HIGH)//When the light sensor detects a signal is interrupted, LED  flashes
  {
  digitalWrite(Led,HIGH)
  }
  else
  {
  digitalWrite(Led,LOW)
  }
  }
• 2.Analog Output:
  int sensorPin = A5; // select the input pin for the potentiometer
  int ledPin = 13; // select the pin for the LED
  int sensorValue = 0; // variable to store the value coming from the sensor
  
  void setup() {
  pinMode(ledPin, OUTPUT); 
  Serial.begin(9600); 
  }
  
  void loop() {
  
  sensorValue = analogRead(sensorPin); 
  digitalWrite(ledPin, HIGH); 
  delay(sensorValue); 
  digitalWrite(ledPin, LOW); 
  delay(sensorValue);
  Serial.println(sensorValue, DEC); 
  }