How to make Bluetooth PIR Motion Sensor Alert Calling System with Arduino

 

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            CODE 

const int PirSensor = 2;

int motionState = 0;

void setup() {

  Serial.begin(9600);

  pinMode(PirSensor, INPUT);

}

void loop() {

  motionState = digitalRead(PirSensor);

  if (motionState == HIGH) {

    Serial.println("1"); 

    motionState = LOW;

    delay(20000);

//    while(0);

  }

}