//PROGRAM FOR ATMEGA 328

int sw1=0;

int sw2=0;

#include <LiquidCrystal.h>

#include <SoftwareSerial.h>

SoftwareSerial SIM900(12, 13);

// initialize the library with the numbers of the interface pins

LiquidCrystal lcd(7, 6, 5, 4, 3, 2);

void setup()

{

SIM900.begin(9600);

Serial.begin(9600);

lcd.begin(16, 2);

pinMode(8, INPUT);

pinMode(9, INPUT);

pinMode(10, OUTPUT);

lcd.setCursor(3,0);

lcd.print("CAR THEFT");

lcd.setCursor(1,1);

lcd.print("DETECTION SYS");

delay(2000);

lcd.clear();

}

void loop()

{

sw1= digitalRead(8);

sw2= digitalRead(9);

if (sw1==0 && sw2==0)

{

lcd.setCursor(1,0);

lcd.print("ACCESS GRANTED");

lcd.setCursor(4,1);

lcd.print("CAR ON ");

digitalWrite(10, HIGH);

}

if (sw1==1 && sw2==0)

{

lcd.setCursor(1,0);

lcd.print("ACCESS DENIED ");

lcd.setCursor(4,1);

lcd.print("CAR OFF");

digitalWrite(10, LOW);

SIM900.print("AT+CMGF=1\r");

Serial.print("AT+CMGF=1\r"); // AT command to send SMS message

delay(2000);

SIM900.println("AT + CMGS = \"9625450453\"");

Serial.println("AT + CMGS = \"9625450453\""); // recipient's mobile number, in international format

delay(1000);

SIM900.println("Someone is trying to access your car"); // message to send

Serial.println("Someone is trying to access your car");

delay(200);

SIM900.println((char)26); // End AT command with a ^Z, ASCII code 26

Serial.println((char)26);

delay(200);

SIM900.println();

delay(5000); // give module time to send SMS

}

}