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This instructable solves the problem of printing GPS location on serial monitor .

We'll send that location in the form of SMS to our mobile than we will take the important part and than paste it on Google maps.

Step 1: Parts

Parts:
• Linkit One
• Linkit One USB cable
• GSM Antenna
• GPS Antenna
• Battery (Linkit one)
• Sim card

Step 2: Code

#include

gpsSentenceInfoStruct info;

char buff[256];

static unsigned char getComma(unsigned char num,const char *str)

{

  unsigned char i,j = 0;

  int len=strlen(str);

  for(i = 0;i < len;i ++)

  {

     if(str[i] == ',')

      j++;

     if(j == num)

      return i + 1;

  }

  return 0;

}

static double getDoubleNumber(const char *s)

{

  char buf[10];

  unsigned char i;

  double rev;

  i=getComma(1, s);

  i = i - 1;

  strncpy(buf, s, i);

  buf[i] = 0;

  rev=atof(buf);

  return rev;

}

static double getIntNumber(const char *s)

{

  char buf[10];

  unsigned char i;

  double rev;

  i=getComma(1, s);

  i = i - 1;

  strncpy(buf, s, i);

  buf[i] = 0;

  rev=atoi(buf);

  return rev;

}

void parseGPGGA(const char* GPGGAstr)

{

  /* Refer to http://www.gpsinformation.org/dale/nmea.htm#GGA

* Sample data: $GPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47

* Where:

* GGA Global Positioning System Fix Data

* 123519 Fix taken at 12:35:19 UTC

* 4807.038,N Latitude 48 deg 07.038' N

* 01131.000,E Longitude 11 deg 31.000' E

* 1 Fix quality: 0 = invalid

* 1 = GPS fix (SPS)

* 2 = DGPS fix

* 3 = PPS fix

* 4 = Real Time Kinematic

* 5 = Float RTK

* 6 = estimated (dead reckoning) (2.3 feature)

* 7 = Manual input mode

* 8 = Simulation mode

* 08 Number of satellites being tracked

* 0.9 Horizontal dilution of position

* 545.4,M Altitude, Meters, above mean sea level

* 46.9,M Height of geoid (mean sea level) above WGS84

* ellipsoid

* (empty field) time in seconds since last DGPS update

* (empty field) DGPS station ID number

* *47 the checksum data, always begins with *

*/

  double latitude;

  double longitude;

  int tmp, hour, minute, second, num ;

  if(GPGGAstr[0] == '$')

  {

    tmp = getComma(1, GPGGAstr);

    hour = (GPGGAstr[tmp + 0] - '0') * 10 + (GPGGAstr[tmp + 1] - '0');

    minute = (GPGGAstr[tmp + 2] - '0') * 10 + (GPGGAstr[tmp + 3] - '0');

    second = (GPGGAstr[tmp + 4] - '0') * 10 + (GPGGAstr[tmp + 5] - '0');

    sprintf(buff, "UTC timer %2d-%2d-%2d", hour, minute, second);

    Serial.println(buff);

    tmp = getComma(2, GPGGAstr);

    latitude = getDoubleNumber(&GPGGAstr[tmp]);

    tmp = getComma(4, GPGGAstr);

    longitude = getDoubleNumber(&GPGGAstr[tmp]);

    sprintf(buff, "latitude = %10.4f, longitude = %10.4f", latitude, longitude);

    Serial.println(buff);

    tmp = getComma(7, GPGGAstr);

    num = getIntNumber(&GPGGAstr[tmp]);

    sprintf(buff, "satellites number = %d", num);

    Serial.println(buff);

  }

  else

  {

    Serial.println("Not get data");

  }

}

void setup() {

  // put your setup code here, to run once:

  Serial.begin(115200);

  LGPS.powerOn();

  Serial.println("LGPS Power on, and waiting ...");

  delay(3000);
while(!LSMS.ready){
delay(1000);
}

}

void loop() {

  // put your main code here, to run repeatedly:

  Serial.println("LGPS loop");

  LGPS.getData(&info);
LSMS.beginSMS(" Enter No.");


  LSMS.print((char*)info.GPGGA);

  parseGPGGA((const char*)info.GPGGA);

  delay(2000);
LSMS.endSMS();

}


Step 3: Finding It on Google Maps

8960.0000,N,00000.0000,E,

Copy this and paste it on Google maps replace , with ° and search you' ll get your location.

Good Luck.

About This Instructable

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Bio: I love all things related to electronics . Follow me for awesome instructables. Science lover. Chemistry hater. Arduino ,linkit one, pro mini etc. familiar with these ... More »
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