Arduino Clapper

/*****************************************
 *             Arduino Clapper           *
 *           by Learnelectronics         *
 *      inspired by Sketch by andprof    *
 *         4/20/23 Use this however      *
 *         you wish. Open Source.        *
 *****************************************/


int Sensor = A0;                                     //microphone sensor attached to A0
int clap = 0;                                         //claps detected starts at 0
long detection_range_start = 0;                      //detection ranbge starts at 0
long detection_range = 0;                            //see above
boolean status_lights = false;                       //clapper inital state is off


void setup() {                                         //setup loop runs once time
pinMode(Sensor, INPUT);                                //sensor pin (A0) is set as input
pinMode(2,OUTPUT);                                    //LED pin set as output
Serial.begin(115200);                                 //serial comms for debugging
}


void loop() {                                        //main loops runs forever
int status_sensor = digitalRead(Sensor);              //read the sensor and store value in status_sensor

if (status_sensor == 0)                               //if it is 0
{
if (clap == 0)                                        //and a clap is detected
{
detection_range_start = detection_range = millis();   //start range is detection range is millis all the same
clap++;                                               //increment clap count
}
else if (clap > 0 && millis()-detection_range >= 50)  //if time has pssed before another detected clap
{
detection_range = millis();                           //reset detection range
clap++;                                               //increment clap count
Serial.println(clap);                                 //for debugging
}
}
if (millis()-detection_range_start >= 400)            //if there are 2 claps in under 400 milliseconds do the thing
{
if (clap == 2)
{
if (!status_lights)
{
status_lights = true;
digitalWrite(2, HIGH);                                //do the thing
}
else if (status_lights)
{
status_lights = false;
digitalWrite(2, LOW);                                 //undo the thing
}
}
clap = 0;                                             //reset clap count
}
}