Microphone Sensor Module Expand

Microphone Sensor Module

9MMICROPHONESN

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Microphone Sensor Module with adjustable gain. Can be used to sense audio with your projects. Compatible with Arduino.

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R24.95

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Description

Microphone Sensor Module with adjustable gain. Can be used to sense audio with your projects. Compatible with Arduino. Uses LM292 comparator for digital thresholding

Includes both analogue and digital outputs

  • AO, analogue output, direct output voltage of the microphone.
  • DO, comparator based output for level sensing. Settable trigger level using potentiometer

Wiring guide

  • Pin + : connect to 5V DC
  • Pin - : connect  Gnd -
  • Pin A0 to Arduino A0 (for analog program)
  • Pin D0 to Arduino 13 (for digital program)

Example code: Digital output

int Led = 13 ;// define LED Interface
int buttonpin = 3; // define D0 Sensor Interface
int val = 0;// define numeric variables val
 
void setup ()
{
  pinMode (Led, OUTPUT) ;// define LED as output interface
  pinMode (buttonpin, INPUT) ;// output interface D0 is defined sensor
}
 
void loop ()
{
  val = digitalRead(buttonpin);// digital interface will be assigned a value of pin 3 to read val
  if (val == HIGH) // When the sound detection module detects a signal, LED flashes
  {
    digitalWrite (Led, HIGH);
  }
  else
  {
    digitalWrite (Led, LOW);
  }
}

Example Code : analog outputs

int sensorPin = A0; // 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);
}

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Microphone Sensor Module

Microphone Sensor Module