Introduction: CAR TRACKER USING SIM900 AND GPS NEO-6M
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About: I love electronic
This project will talk about car tracking device. The device will be installed in hidden place, somewhere inside car. It will be equipped with SIM card. The owner of the car will give a call to the number installed on this device. Once call received, the device will send its location thru SMS. The message is linked to google map to find accurate location.
Supplies
BILL OF MATERIAL
- Arduino UNO x 1
- SIM900 GSM/GPRS Shield x 1
- Ublox-NEO-6M-GPS-Module x 1
- SIM Card x 1
- Power Supply Module x 1
Step 1: WIRING DIAGRAM
Assemble the circuit as wiring diagram
Step 2: UPLOADING THE SKETCH
#include <TinyGPS++.h>
#include <SoftwareSerial.h>
#include <TimeLib.h>
#define time_offset 10800 // Local time is UTC+3, so 10800 is 3hrs in sec, change based on your location
SoftwareSerial SIM900(7, 8);
char incoming_char = 0;
String gMap = "http://www.google.com/maps/place/";
double Latitude, Longitude, Altitude, speed;
boolean GPSstatus = false;
static const uint32_t GPSBaud = 9600;
TinyGPSPlus gps; // The TinyGPS++ object
char Time[] = "00:00:00";
char Date[] = "00-00-2000";
String nameofday;
int Year;
byte last_second , Month, Day, Hour, Minute, Second;
String DateString = "";
void SIM900power()
{
pinMode(9, OUTPUT);
digitalWrite(9,LOW);
delay(1000);
digitalWrite(9,HIGH);
delay(2000);
digitalWrite(9,LOW);
delay(3000);
}
void setup() {
SIM900power();
SIM900.begin(9600); // for GSM shield
Serial.begin(9600); // For serial monitor<br> delay(20000); // Give time to log on to network.<br> SIM900.print("AT+CLIP=1\r"); // turn on caller ID notification
delay(100);
}
void loop() {
while (Serial.available() > 0)
if (gps.encode(Serial.read()))
getGPSdata();
// Display any text that the GSM shield sends out on the serial monitor
if (SIM900.available() > 0) {
// Get the character from the cellular serial port
// With an incomming call, a "RING" message is sent out
incoming_char = SIM900.read();
// Check if the shield is sending a "RING" message
if (incoming_char == 'R') {
delay(10);
Serial.print(incoming_char);
incoming_char = SIM900.read();
if (incoming_char == 'I') {
delay(10);
Serial.print(incoming_char);
incoming_char = SIM900.read();
if (incoming_char == 'N') {
delay(10);
Serial.print(incoming_char);
incoming_char = SIM900.read();
if (incoming_char == 'G') {
delay(10);
Serial.print(incoming_char);
// If the message received from the shield is RING
// Wait till call is confirmed received
delay(1000);
SIM900.println("ATH"); // hang up
if (Latitude + Longitude == 0) {
No_GPS_Message();
}
else {
Valid_GPS_Message();
}
}
}
}
}
}
}
void Valid_GPS_Message()
{
dateString(); //include time stamp
SIM900.println("AT+CMGF=1"); //Sets the GSM Module in Text Mode
delay(1000);
SIM900.println("AT+CMGS=\"+xxxxxxxxxxx\"\r"); // Replace x with mobile number+Country Code
delay(1000);
SIM900.println(dateString());
delay(100);
SIM900.print(gMap);
delay(100);
SIM900.print(Latitude, 6);// 6 digit has to be defined, otherwaise only 2 digit is displayed
delay(100);
SIM900.print(",");
delay(100);
SIM900.println(Longitude, 6);// 6 digit has to be defined, otherwaise only 2 digit is displayed
delay(100);
SIM900.println((char)26);// ASCII code of CTRL+Z
delay(1000);
}
void No_GPS_Message()
{
SIM900.println("AT+CMGF=1"); //Sets the GSM Module in Text Mode
delay(1000);
SIM900.println("AT+CMGS=\"+xxxxxxxxxxx\"\r"); // Replace x with mobile number
delay(1000);
SIM900.println("GPS DATA NOT AVAILABLE");
delay(100);
SIM900.println("PLEASE TRY LATER");
delay(100);
SIM900.println((char)26);// ASCII code of CTRL+Z
delay(1000);
}
void getGPSdata() {
if (gps.location.isValid()) {
Latitude = gps.location.lat(), 6; // Latitude in degrees (double)
Longitude = gps.location.lng(), 6; // Longitude in degrees (double)
GPSstatus = true;
}
else
GPSstatus = false;
if (gps.date.isValid()) {
Year = gps.date.year(); // Year (2000+) (u16)
Month = gps.date.month(); // Month (1-12) (u8)
Day = gps.date.day(); // Day (1-31) (u8)
}
else
GPSstatus = false;
if (gps.time.isValid()) {
Hour = gps.time.hour(); // Hour (0-23) (u8)
Minute = gps.time.minute(); // Minute (0-59) (u8)
Second = gps.time.second(); // Second (0-59) (u8)
}
else
GPSstatus = false;
if (last_second != gps.time.second()) {
last_second = gps.time.second();
// set current UTC time
setTime(Hour, Minute, Second, Day, Month, Year);
// add the offset to get local time
adjustTime(time_offset);
// update time array
Time[6] = second() / 10 + '0';
Time[7] = second() % 10 + '0';
Time[3] = minute() / 10 + '0';
Time[4] = minute() % 10 + '0';
Time[0] = hour() / 10 + '0';
Time[1] = hour() % 10 + '0';
// update date array
Date[8] = (year() / 10) % 10 + '0';
Date[9] = year() % 10 + '0';
Date[3] = month() / 10 + '0';
Date[4] = month() % 10 + '0';
Date[0] = day() / 10 + '0';
Date[1] = day() % 10 + '0';
}
switch (weekday()) {
case 1: nameofday = "SUNDAY, "; break;
case 2: nameofday = "MONDAY, "; break;
case 3: nameofday = "TUESDAY, "; break;
case 4: nameofday = "WEDNESDAY, "; break;
case 5: nameofday = "THURSDAY, "; break;
case 6: nameofday = "FRIDAY, "; break;
default: nameofday = "SATURDAY, ";
}
if (gps.speed.isValid()) {
speed = gps.speed.mps(); // Speed in meters per second (double)
}
else
GPSstatus = false;
if (gps.altitude.isValid()) {
Altitude = gps.altitude.meters(); // Altitude in meters (double)
}
else
GPSstatus = false;
delay(1000);
}
String dateString() {
DateString = "";
DateString += nameofday;
DateString += " ";
DateString += Date;
DateString += " ";
DateString += Time;
return DateString;
}
