راه اندازی ماژول حسگر صوت LM393 با آردوینو

				
					
int soundPin = 11; // sound sensor pin
int LEDpin = 5; // LED pin
int detected = LOW; // sound detect state to LOW
unsigned long detectTime; // time sound detected
int lag = 1000; // time between sounds (ms)
int sound;
void setup ()
{
Serial.begin(9600); // set baud rate for Serial Monitor
pinMode(LEDpin, OUTPUT); // LED pin as output
}
void loop ()
{
sound = digitalRead(soundPin); // read sound pin
if (sound == LOW) // sound detected with LOW, not HIGH
{
detectTime = millis(); // start time of new sound
if (detected == LOW) // if currently no sound
{ // print "new SOUND" and tab
Serial.print("new SOUND");Serial.print("\t");
detected = HIGH; // update sound detect state to HIGH
digitalWrite(LEDpin, detected); // turn LED on
}
}
else if (sound == HIGH) // no sound detected
{ // continuous sound no longer detected
if(detected == HIGH && (millis()-detectTime) > lag)
{
Serial.println("now quiet"); // print "now quiet" with a new line
detected = LOW; // update sound detect state to LOW
digitalWrite(LEDpin, detected); // turn LED off
}
}
}