Modul senzor vibratie

int LED_Pin = 13;
int vibr_Pin =3;

void setup(){
pinMode(LED_Pin, OUTPUT);
pinMode(vibr_Pin, INPUT); //set vibr_Pin input for measurment
Serial.begin(9600); //init serial 9600
// Serial.println("----------------------Vibration demo------------------------");
}
void loop(){
long measurement =TP_init();
delay(50);
// Serial.print("measurment = ");
Serial.println(measurement);
if (measurement > 1000){
digitalWrite(LED_Pin, HIGH);
}
else{
digitalWrite(LED_Pin, LOW);
}
}

long TP_init(){
delay(10);
long measurement=pulseIn (vibr_Pin, HIGH); //wait for the pin to get HIGH and returns measurement
return measurement;
}