Clap Switch with Arduino and Sound Sensor, Arduino project with code

The clap switch is used in a wide range of electronic projects, to control devices by clapping or making a specific sound. The clap switch consists of a Sound Sensor module connected to a microcontroller, or to an Arduino board. And through a software code, the audio signal can be converted into a key to turn on and off electronic devices or electronic circuits.
In this post we will learn: How To Make Clap Switch with Arduino and Sound Sensor.

Electronic components needed :

1 Resistance ( 220 Ohm )
1 Led
Sound Sensor Module KY-038
Electrical wires
Arduino UNO
Breadboard

Schema of the circuit :

Arduino programming code :

int Sensor = A0;
int clap = 0;
long detection_range_start = 0;
long detection_range = 0;
boolean status_lights = false;
// By www.andprof.com
void setup() {
pinMode(Sensor, INPUT);
pinMode(10,OUTPUT);
}

void loop() {
int status_sensor = digitalRead(Sensor);
if (status_sensor == 0)
{
if (clap == 0)
{
detection_range_start = detection_range = millis();
clap++;
}
else if (clap > 0 && millis()-detection_range >= 50)
{
detection_range = millis();
clap++;
}
}
if (millis()-detection_range_start >= 400)
{
if (clap == 2)
{
if (!status_lights)
{
status_lights = true;
digitalWrite(10, HIGH);
}
else if (status_lights)
{
status_lights = false;
digitalWrite(10, LOW);
}
}
clap = 0;
}
}