Building Sound Sensor Project

Sound Sensor Project

To gain more experience with building projects using sensors, I decided to build the music reactive LED circuit found on the instructables website.

This circuit uses a sound sensor which controls whether the LED flashes on or off - depending if music is playing or not.

Code written for this circuit

int soundsensor = 3;

int led = 7;                // defining pin numbers



void setup() { 

  pinMode (soundsensor, INPUT);

  pinMode (led, OUTPUT);

}



void loop(){

  int sensorvalue = digitalRead (soundsensor);   //if the sound intensity is higher than threshold                            

  if (sensorvalue == 1)                                        //then sensor would return the value as 1    

  {

    digitalWrite(led, HIGH);

  }

  

  else

  {

    digitalWrite(led, LOW);

  }

  

}

Bibliography & References 

[1] http://www.instructables.com/id/Music-Reactive-LED-Arduino-Sound-Sensor-Tutorial-i/