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/

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