Arduino Clapper

/**********************************************************
 *                     Arduino Clapper v3
 *                learnelectronics 23 OCT 2023
 *                email: [email protected]
 *          https://www.youtube.com/learnelectronics
 *
 *                Original Sketch by: Sarful
 *              https://www.hackster.io/sarful
 ***********************************************************/




int NumberSounds = 0;
int SoundPin = 3;
int RawValue = 0;
int NumberClaps = 0;
int LightOn = 0;
unsigned long SoundDetectedTime = 0;
unsigned long PreviousSoundDetectedTime = 0;
int UniqueClapMinTime = 100;
int LEDPin = 2;
unsigned long PreviousClapTime = 0;
unsigned long CurrentClapTime = 0;
unsigned long MaxTimeBetweenClaps = 2000;


void setup()
{
 pinMode(SoundPin, INPUT);
 pinMode(LEDPin, OUTPUT);
 Serial.begin(9600);
 Serial.println("The Light Clapper ...");
}


int IsSoundPartOfUniqueClap()
{
 int result = 0;
 unsigned long ElapsedTime =
   SoundDetectedTime -
   PreviousSoundDetectedTime;
 if (ElapsedTime >= UniqueClapMinTime)
 {
    result = 1;
 }
 return result;
}



int CheckTurnOnOffLight()
{
 int result = 0;
 unsigned long ElapsedTime =
   CurrentClapTime - PreviousClapTime;
 if (ElapsedTime <= MaxTimeBetweenClaps)
 {
    if (NumberClaps == 2)
    {
       result = 1;
       NumberClaps = 0;
    }
 }
 else
 {
    NumberClaps = 1;
 }
 return result;
}


void loop()
{
 RawValue = digitalRead(SoundPin);
 if (RawValue == 0)
 {
    Serial.print("SOUND DETECTED ... ");
    Serial.print(", Sound Number: ");
    Serial.print(NumberSounds);
    Serial.print(", RawValue: ");
    Serial.println(RawValue);
    NumberSounds++;

    // Process raw data for claps
    PreviousSoundDetectedTime =
      SoundDetectedTime;
    SoundDetectedTime = millis();
    if(IsSoundPartOfUniqueClap())
    {
       NumberClaps++;

       // Update Clap Times
       PreviousClapTime =
         CurrentClapTime;
       CurrentClapTime = millis();

       // Turn Light ON/OFF as needed
       if (CheckTurnOnOffLight())
       {
          LightOn = ~LightOn;
          if (LightOn)
          {
             digitalWrite(LEDPin, HIGH);
          }
          else
          {
             digitalWrite(LEDPin, LOW);
          }
       }
    }
 }
}