How to use The Sound Sensor Module

The sound sensor module utilizes a microphone to sense any sounds. In this guide, we will be using the Sound Sensor Module from our shop.

Parts

• Sound Sensor Module
• M/M Jumper wires
• Arduino Uno R3
• Arduino IDE

Wiring Guide

Step 1: Connect the sensor pins to the Arduino

Sensor	Arduino
G	GND
+	5V
D0	Pin 3

Programming

Step 1: Declare the pin connected to the sensor as well as a boolean value

int sensorPin = 3;
boolean val = 0;

Step 2: Activate the pin connected to the sensor as well as activating the serial monitor

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

Step 3: Read the sensor pin and put the value into val

val = digitalRead(sensorPin);

Step 4: Create an if/else statement for when the sensor hears sound

if (val == HIGH) {
  Serial.println("ON");
}else{
  Serial.println("OFF");
}
delay(1000);

Full Code

int sensorPin = 3;
boolean val = 0;

void setup(){
  pinMode(sensorPin, INPUT);
  Serial.begin (9600);
}
  
void loop (){
  val = digitalRead(sensorPin);
  if (val == HIGH){
    Serial.println("ON");
  }
  else{
    Serial.println("OFF");
  }
  delay(1000);
}

Output

Serial Monitor