Arduino Tutorials – Lesson 19 – Sound And Light Program Using Arduino UNO

Creating LEDs flash program Using Sound sensor

Required Components

1. Arduino UNO -1 no
2. Sound sensor -1 no
3. Resistor 150 ohm -6 no
4. LEDs -6 no
5. Connecting wires -1 set

Circuit

• 

Steps

1. Make sure the components are working properly.
2. Connect the Sound sensor to the Arduino UNO board.
3. Connect the Arduino UNO board 8, 9 ,10 ,11 ,12 ,13- pins to the LEDs.
4. Connect the Arduino UNO board A0 pin to the Sound sensor.
5. Connect the 150 Ohm Resistor to all the LEDs.
6. Connect Sound sensor board VCC, GND to 5V, GND of Arduino Uno Board.
7. Check the Cicuit Connections.
8. Check the Arduino program.
9. Run the Arduino program.

Arduino Program

int ledPin1= 8; 
int ledPin2= 9;
int ledPin3= 10;  
int ledPin4= 11;
int ledPin5= 12;
int ledPin6= 13;
int sensorPin= A0; 
int val = 0;

void setup( )
{
  pinMode(ledPin1, OUTPUT); 
  pinMode(ledPin2, OUTPUT);
  pinMode(ledPin3, OUTPUT);
  pinMode(ledPin4, OUTPUT);
  pinMode(ledPin5, OUTPUT);
  pinMode(ledPin6, OUTPUT);
  pinMode(sensorPin, INPUT); 
  Serial.begin (9600);
}

void loop (  )
{
  val =analogRead(sensorPin);
  Serial.println (val);
  if (val >= 127) 
  {
    digitalWrite(ledPin1, HIGH); 
  }else {
    digitalWrite(ledPin1, LOW);
  }
  if (val >= 378) 
  {
    digitalWrite(ledPin2, HIGH);
  }else {
    digitalWrite(ledPin2, LOW);
  }
  if (val >= 505) 
  {
    digitalWrite(ledPin3, HIGH);
  }else {
    digitalWrite(ledPin3, LOW);
  }
  if (val >= 632)
  {
    digitalWrite(ledPin4, HIGH);
  }else 
  {
    digitalWrite(ledPin4, LOW);
  }
  if (val >= 759) {
    digitalWrite(ledPin5, HIGH);
  }else 
  {
    digitalWrite(ledPin5, LOW);
  }
  if (val >= 886)
  {
    digitalWrite(ledPin6, HIGH);
  }else 
  {
    digitalWrite(ledPin6, LOW);
  }
}

Usage

1. Security system for Office or Home
2. Spy Circuit
3. Home Automation
4. Smart Phones
5. Ambient sound recognition
6. Audio amplifier

Projects

1. Lightning cloud