Sound Level Detection

Objective

This experiment uses a sound sensor to detect and measure sound levels, useful for noise monitoring and sound-based automation systems.

Required Components

• Sound Sensor
• Arduino Board (e.g., Arduino Uno)
• Jumper wires
• Breadboard
• Arduino IDE (for programming)

Working Principle

The sound sensor detects sound waves in the environment, converting them into analog signals. These signals can be measured using an Arduino to determine the sound level.

Circuit Diagram

Connect the sensor as follows:

• Connect the VCC pin of the sensor to the 5V pin on the Arduino.
• Connect the GND pin of the sensor to the GND pin on the Arduino.
• Connect the signal pin of the sensor to analog pin A0 on the Arduino.

Arduino Code

/*
 * Sound Level Detection with Sound Sensor
 * This code reads the sound sensor output and displays it on the serial monitor.
 */

const int soundPin = A0;  // Sound sensor connected to analog pin A0
int soundValue = 0;

void setup() {
    Serial.begin(9600);  // Initialize serial communication
}

void loop() {
    // Read the sound sensor value
    soundValue = analogRead(soundPin);

    // Print the sound value to the serial monitor
    Serial.print("Sound Level: ");
    Serial.println(soundValue);

    delay(500);  // Wait for 0.5 seconds
}
            

Results

The serial monitor will display the sound level detected by the sound sensor in analog values.

Applications

• Noise pollution monitoring
• Sound-activated systems
• Sound detection for security systems

Conclusion

The sound sensor is a versatile component for detecting sound levels, with applications in noise monitoring, security, and automation systems.