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//ultrasonic Arduino code 
#define echoPin 7 // Echo Pin  
#define trigPin 8 // Trigger Pin  
long duration, distance ; // Duration used to calculate distance  
void setup() {   
pinMode(trigPin, OUTPUT);  
pinMode(echoPin, INPUT);  
Serial.begin (9600);  
}  
void loop() {  
/* The following trigPin/echoPin cycle is used to determine the  
distance of the nearest object by bouncing soundwaves off of it. */   
digitalWrite(trigPin, LOW);   
delayMicroseconds(2);   
digitalWrite(trigPin, HIGH);  
delayMicroseconds(10);   
digitalWrite(trigPin, LOW);  
duration = pulseIn(echoPin, HIGH);  
//Calculate the distance (in cm) based on the speed of sound.  
distance = duration/58.2;  
Serial.println(distance);  
//Delay 50ms before next reading.  
delay(50);   
} 

const int freq = 500; 
const int dur = 20; 
const int buzzer = 3; 
void setup() { 
 // put your setup code here, to run once: 
 pinMode(buzzer, OUTPUT); 
} 
void loop() { 
 // put your main code here, to run repeatedly: 
 tone(buzzer, freq, dur); 
 delay(50); 
} 

#include "TinyGPS++.h" 
#include "SoftwareSerial.h" 
SoftwareSerial serial_connection(10, 11); //RX=pin 10, TX=pin 11 
TinyGPSPlus gps;//This is the GPS object that will pretty much do all the grunt work with the NMEA data 
void setup() 
{ 
 Serial.begin(9600);//This opens up communications to the Serial monitor in the Arduino IDE 
 serial_connection.begin(9600);//This opens up communications to the GPS 
 Serial.println("GPS Start");//Just show to the monitor that the sketch has started 
} 
void loop() 
{ 
 while(serial_connection.available())//While there are characters to come from the GPS 
 { 
   gps.encode(serial_connection.read());//This feeds the serial NMEA data into the library one char at a time 
 } 
 if(gps.location.isUpdated())//This will pretty much be fired all the time anyway but will at least reduce it to only after a package of NMEA data comes in 
 { 
   //Get the latest info from the gps object which it derived from the data sent by the GPS unit 
   Serial.println("Satellite Count:"); 
   Serial.println(gps.satellites.value()); 
   Serial.println("Latitude:"); 
   Serial.println(gps.location.lat(), 6); 
   Serial.println("Longitude:"); 
   Serial.println(gps.location.lng(), 6); 
   Serial.println("Speed MPH:"); 
   Serial.println(gps.speed.mph()); 
   Serial.println("Altitude Feet:"); 
   Serial.println(gps.altitude.feet()); 
   Serial.println(""); 
 } 
} 
/* 
* $GPRMC,183729,A,3907.356,N,12102.482,W,000.0,360.0,080301,015.5,E*6F 
$GPRMB,A,,,,,,,,,,,,V*71 
$GPGGA,183730,3907.356,N,12102.482,W,1,05,1.6,646.4,M,-24.1,M,,*75 
$GPGSA,A,3,02,,,07,,09,24,26,,,,,1.6,1.6,1.0*3D 
$GPGSV,2,1,08,02,43,088,38,04,42,145,00,05,11,291,00,07,60,043,35*71 
$GPGSV,2,2,08,08,02,145,00,09,46,303,47,24,16,178,32,26,18,231,43*77 
$PGRME,22.0,M,52.9,M,51.0,M*14 
$GPGLL,3907.360,N,12102.481,W,183730,A*33 
$PGRMZ,2062,f,3*2D 
$PGRMM,WGS 84*06 
$GPBOD,,T,,M,,*47 
$GPRTE,1,1,c,0*07 
$GPRMC,183731,A,3907.482,N,12102.436,W,000.0,360.0,080301,015.5,E*67 
$GPRMB,A,,,,,,,,,,,,V*71 
*/  

/* PIR sensor tester*/ 
int ledPin = 13; // choose the pin for the LED 
int inputPin = 2; // choose the input pin (for PIR sensor) 
int pirState = LOW; // we start, assuming no motion detected 
int val = 0; // variable for reading the pin status 
void setup() { 
pinMode(ledPin, OUTPUT); // declare LED as output 
pinMode(inputPin, INPUT); // declare sensor as input 
Serial.begin(9600); 
} 
void loop(){ 
val = digitalRead(inputPin); // read input value 
if (val == HIGH) { // check if the input is HIGH 
digitalWrite(ledPin, HIGH); // turn LED ON 
if (pirState == LOW) { 
// we have just turned on 
Serial.println("Motion detected!"); 
// We only want to print on the output change, not state 
pirState = HIGH; 
} 
} else { 
digitalWrite(ledPin, LOW); // turn LED OFF 
if (pirState == HIGH){ 
// we have just turned of 
Serial.println("Motion ended!"); 
// We only want to print on the output change, not state 
pirState = LOW; 
} 
} 
} 

//==============================================
// led constants from pin 10 to 12 
//==============================================
const int ledPin1 = 10;     // parking mode 
const int ledPin2 = 11;     // find my car mode
const int ledPin3 = 12;     // theif alarm mode 

// variables will change:
int ledState1 = LOW;         // variable for reading the led 1 status
int ledState2 = LOW;         // variable for reading the led 2 status
int ledState3 = LOW;         // variable for reading the led 3 status

//==============================================
// pir sensor constants 
//============================================== 
int inputPin = 9 ; // choose the input pin (for PIR sensor) 
int pirState = LOW ; // we start, assuming no motion detected 
int pirval = 0; // variable for reading the pin status 

//==============================================
// police buzzer constants 
//============================================== 
const int freq = 500;
const int dur = 10;
const int buzzer = 3;

//==============================================
// GPS constants 
//============================================== 
#include "TinyGPS++.h" 
#include "SoftwareSerial.h" 
SoftwareSerial serial_connection(5, 4); //RX=pin 5, TX=pin 4 
TinyGPSPlus gps;//This is the GPS object that will pretty much do all the grunt work with the NMEA data 
long Latitude ,  Longitude ;

//==============================================
// Ultrasonic Sensor constants 
//============================================== 
#define echoPin 7 // Echo Pin  
#define trigPin 8 // Trigger Pin  
long duration, distance ; // Duration used to calculate distance 

//==============================================
// Declaring values to be printed 
//============================================== 
int mode = 0 ;
int gpsState = false ;

void setup() 
{
  
  // initialize the led pin as an input
  
  pinMode(ledPin1, INPUT);
  pinMode(ledPin2, INPUT);
  pinMode(ledPin3, INPUT);
  
  // declare sensor as input
  
  pinMode(inputPin, INPUT);  
  Serial.begin(9600); 

  // declare buzzer pin as output
  
  pinMode(buzzer, OUTPUT);

  // GPS declaration 
  serial_connection.begin(9600);//This opens up communications to the GPS
  Serial.println("GPS Start");//Just show to the monitor that the sketch has started 

  //Ultrasonic declaration
  pinMode(trigPin, OUTPUT);  
  pinMode(echoPin, INPUT);  

}

void loop() {
  // read the state of the pushbutton value:
    ledState1 = digitalRead(ledPin1);
    ledState2 = digitalRead(ledPin2);
    ledState3 = digitalRead(ledPin3);

  //read the GPS values
    while(serial_connection.available())//While there are characters to come from the GPS 
    { 
    gps.encode(serial_connection.read());//This feeds the serial NMEA data into the library one char at a time 
    } 
    if(gps.location.isUpdated())//This will pretty much be fired all the time anyway but will at least reduce it to only after a package of NMEA data comes in 
    { 
   //Get the latest info from the gps object which it derived from the data sent by the GPS unit 
    Latitude =  gps.location.lat() ;
    Longitude =  gps.location.lng();  
    }

  
  // check the mode that is chosen .

  //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  // device off MODE 
  //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 
   if (ledState1 == LOW && ledState2 == LOW && ledState3 == LOW) 
    {
     mode = 0 ;
     gpsState = true ;
    
 // print mode , pirState , gpsState , longtude , latitude
    Serial.print(String(mode)); //mode number
    Serial.print(",");
    Serial.print(String(pirState)); //print if there is somebody in the car or not 
    Serial.print(","); 
    Serial.print(String(gpsState));// gpsState
    Serial.print(",");
    Serial.print(String(Longitude));// Longitude
    Serial.print(",");
    Serial.println(String(Latitude));// Latitude
  }

  
  //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  // PARKING MODE 
  //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  // if led 1 is HIGH then parking mode is active .
  else if (ledState1 == HIGH && ledState2 == LOW && ledState3 == LOW) 
  {
   mode = 1 ;
   gpsState = false ;
   
   /* The following trigPin/echoPin cycle is used to determine the
 distance of the nearest object by bouncing soundwaves off of it. */ 
 
 digitalWrite(trigPin, LOW); 
 delayMicroseconds(2); 
 digitalWrite(trigPin, HIGH);
 delayMicroseconds(10);  
 digitalWrite(trigPin, LOW);
 duration = pulseIn(echoPin, HIGH);
 
 //Calculate the distance (in cm) based on the speed of sound.
 distance = duration/58.2;

 int no =2;
 if(distance < 7){
   tone(buzzer, freq, dur);
   delay(distance*no);
 } else if (distance < 15){
   tone(buzzer, freq, dur);
   delay(distance*no);
 } else if (distance < 20){
   tone(buzzer, freq, dur);
   delay(distance*no);
 } else if (distance < 25){
   tone(buzzer, freq, dur);
   delay(distance*no);
 } else if (distance < 30){
   tone(buzzer, freq, dur);
   delay(distance*no);
 } else if (distance < 35){
   tone(buzzer, freq, dur);
   delay(distance*no);
 } else if (distance < 40){
   tone(buzzer, freq, dur);
   delay(distance*no);
 } else if (distance < 45){
   tone(buzzer, freq, dur);
   delay(distance*no);
 } else if (distance < 50){
   tone(buzzer, freq, dur);
   delay(distance*no);
 } else if (distance < 55){
   tone(buzzer, freq, dur);
   delay(distance*no);
 } 
 
Serial.print(String(distance)); //mode number
    
 //Delay 50ms before next reading.
 delay(500);

 // values to be printed on the cloud in mode 1
 // print mode , pirState , gpsState , Longitude , Latitude
    Serial.print(String(1)); //mode number
    Serial.print(",");
    Serial.print(String(0)); //print if there is somebody in the car or not 
    Serial.print(",");
    Serial.print(String(gpsState));// GPS State
    Serial.print(",");
    Serial.print(String(Longitude));// Longitude
    Serial.print(",");
    Serial.println(String(Latitude));// Latitude
     }   
    
  
  //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  // FIND MY CAR MODE 
  //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  // if led 2 is HIGH then gps tracking (find my car) mode is active .
  else if (ledState1 == LOW && ledState2 == HIGH && ledState3 == LOW) 
  {
    
   mode = 2 ;
   gpsState = true ;
   
    // turn on alarm  
   tone(buzzer, freq, 1500);
   delay(1000);
   tone(buzzer, freq, 500);
   delay(500);

 // values to be printed on the cloud in mode 1
 // print mode , pirState , gpsState , longitude , Latitude
    Serial.print(String(mode)); //mode number
    Serial.print(",");
    Serial.print(String(pirState)); //print if there is somebody in the car or not 
    Serial.print(","); 
    Serial.print(String(gpsState));// GPS State
    Serial.print(",");
    Serial.print(String(Longitude));// Longitude
    Serial.print(",");
    Serial.println(String(Latitude));// Latitude
      }

  //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  // THIEF ALARM MODE 
  //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  
  // if led 3 is HIGH then alarm mode is active .
  else if (ledState1 == LOW && ledState2 == LOW && ledState3 == HIGH) 
  {
   mode = 3 ;
   gpsState = true ;
   
   //check the PIR sensor state to make alarm & report car location if anybody entered the car 
   pirval = digitalRead(inputPin); // read input value 
   if (pirval == HIGH ) { 
    
   // turn on alarm  
   tone(buzzer, freq, 1000);
   delay(100);
   tone(buzzer, freq, 500);
   delay(500);
 
    } 
     
    else { 
    } 


 // print mode , pirState , gpsState , longtude , Latitude
    Serial.print(String(3)); //mode number
    Serial.print(",");
    Serial.print(String(pirval)); //print if there is somebody in the car or not 
    Serial.print(","); 
    Serial.print(String(gpsState));// gpsState
    Serial.print(",");
    Serial.print(String(Longitude));// Longitude
    Serial.print(",");
    Serial.println(String(Latitude));// Latitude
  
  }

 
}