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how to make computer security using hardware at your home


Circuit:


Download Programming and Circuit:


#include <SoftwareSerial.h>




//Alarm reciever's phone number with country code


const String PHONE = "Enter_Your_Phone";




#define rxPin 2 //GSM Module TX pin to Arduino 2


#define txPin 3 //GSM Module RX pin to Arduino 3


SoftwareSerial sim800(rxPin,txPin);




//the pin that the sensor is atteched to


int sensor = 11;




void setup() {


  pinMode(sensor, INPUT);


  Serial.begin(115200);




  sim800.begin(9600);


  Serial.println("SIM800L software serial initialize");




  sim800.println("AT");


  delay(1000);


}




void loop(){




while(sim800.available()){


  Serial.println(sim800.readString());


}


while(Serial.available()) {


  sim800.println(Serial.readString());


}


  int val = digitalRead(sensor);


  if (val == HIGH) {


    //state = HIGH;


    Serial.println("Motion detected!");


    Serial.println("calling....");


    delay(1000);


    sim800.println("ATD"+PHONE+";");


    delay(20000);


  }


}




Demo Video:


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