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Has anyone some experience of linking the uBlox 6M GPS to the arduino?

At first I would like it to print the the NMEA string $GPGGA to the terminal window..

ANY help, code ect would be greatly appreciated.

Many Thanks
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A link to the GPS in question would be nice.

How have you tried connecting it? What code are you using? What results did you have?
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Sorry, GPS is found http://www.u-blox.com/images/downloads/Product_Docs/NEO-6_DataSheet_%28GPS.G6-HW-09005%29.pdf

Things have moved on a little now, I've got it reading now, using this code.  I've had to use the old 023 version of Arduino to upload though, issue with BYTE.

Any help to get it to upload using the latest Arduino would be appreciated.


Code:
// A simple sketch to read GPS data and parse the $GPRMC string
// see http://www.ladyada.net/make/gpsshield for more info

#include <NewSoftSerial.h>

NewSoftSerial mySerial =  NewSoftSerial(5, 3);
#define powerpin 4

#define GPSRATE 9600
//#define GPSRATE 38400


// GPS parser for 406a
#define BUFFSIZ 90 // plenty big
char buffer[BUFFSIZ];
char *parseptr;
char buffidx;
uint8_t hour, minute, second, year, month, date;
uint32_t latitude, longitude;
uint8_t groundspeed, trackangle;
char latdir, longdir;
char status;

void setup()
{
  if (powerpin) {
    pinMode(powerpin, OUTPUT);
  }
  pinMode(13, OUTPUT);
  Serial.begin(GPSRATE);
  mySerial.begin(GPSRATE);
  
  // prints title with ending line break
  Serial.println("GPS parser");
 
   digitalWrite(powerpin, LOW);         // pull low to turn on!
}
 
 
void loop()
{
  uint32_t tmp;
  
  Serial.print("\n\rread: ");
  readline();
  
  // check if $GPRMC (global positioning fixed data)
  if (strncmp(buffer, "$GPRMC",6) == 0) {
    
    // hhmmss time data
    parseptr = buffer+7;
    tmp = parsedecimal(parseptr);
    hour = tmp / 10000;
    minute = (tmp / 100) % 100;
    second = tmp % 100;
    
    parseptr = strchr(parseptr, ',') + 1;
    status = parseptr[0];
    parseptr += 2;
    
    // grab latitude & long data
    // latitude
    latitude = parsedecimal(parseptr);
    if (latitude != 0) {
      latitude *= 10000;
      parseptr = strchr(parseptr, '.')+1;
      latitude += parsedecimal(parseptr);
    }
    parseptr = strchr(parseptr, ',') + 1;
    // read latitude N/S data
    if (parseptr[0] != ',') {
      latdir = parseptr[0];
    }
    
    //Serial.println(latdir);
    
    // longitude
    parseptr = strchr(parseptr, ',')+1;
    longitude = parsedecimal(parseptr);
    if (longitude != 0) {
      longitude *= 10000;
      parseptr = strchr(parseptr, '.')+1;
      longitude += parsedecimal(parseptr);
    }
    parseptr = strchr(parseptr, ',')+1;
    // read longitude E/W data
    if (parseptr[0] != ',') {
      longdir = parseptr[0];
    }
    

    // groundspeed
    parseptr = strchr(parseptr, ',')+1;
    groundspeed = parsedecimal(parseptr);

    // track angle
    parseptr = strchr(parseptr, ',')+1;
    trackangle = parsedecimal(parseptr);


    // date
    parseptr = strchr(parseptr, ',')+1;
    tmp = parsedecimal(parseptr);
    date = tmp / 10000;
    month = (tmp / 100) % 100;
    year = tmp % 100;
    
    Serial.print("\nTime: ");
    Serial.print(hour, DEC); Serial.print(':');
    Serial.print(minute, DEC); Serial.print(':');
    Serial.println(second, DEC);
    Serial.print("Date: ");
    Serial.print(month, DEC); Serial.print('/');
    Serial.print(date, DEC); Serial.print('/');
    Serial.println(year, DEC);
    
    Serial.print("Lat: ");
    if (latdir == 'N')
       Serial.print('+');
    else if (latdir == 'S')
       Serial.print('-');

    Serial.print(latitude/1000000, DEC); Serial.print('\°', BYTE); Serial.print(' ');
    Serial.print((latitude/10000)%100, DEC); Serial.print('\''); Serial.print(' ');
    Serial.print((latitude%10000)*6/1000, DEC); Serial.print('.');
    Serial.print(((latitude%10000)*6/10)%100, DEC); Serial.println('"');
  
    Serial.print("Long: ");
    if (longdir == 'E')
       Serial.print('+');
    else if (longdir == 'W')
       Serial.print('-');
    Serial.print(longitude/1000000, DEC); Serial.print('\°', BYTE); Serial.print(' ');
    Serial.print((longitude/10000)%100, DEC); Serial.print('\''); Serial.print(' ');
    Serial.print((longitude%10000)*6/1000, DEC); Serial.print('.');
    Serial.print(((longitude%10000)*6/10)%100, DEC); Serial.println('"');
  
  }
  //Serial.println(buffer);
}

uint32_t parsedecimal(char *str) {
  uint32_t d = 0;
  
  while (str[0] != 0) {
   if ((str[0] > '9') || (str[0] < '0'))
     return d;
   d *= 10;
   d += str[0] - '0';
   str++;
  }
  return d;
}

void readline(void) {
  char c;
  
  buffidx = 0; // start at begninning
  while (1) {
      c=mySerial.read();
      if (c == -1)
        continue;
      Serial.print(c);
      if (c == '\n')
        continue;
      if ((buffidx == BUFFSIZ-1) || (c == '\r')) {
        buffer[buffidx] = 0;
        return;
      }
      buffer[buffidx++]= c;
  }
}

It outputs in this format:



read:
$GPVTG,,T,,M,0.412,N,0.763,K,A*26

read:
$GPGGA,1****1.00,****.90332,19,039,42,17,34,307,10*7E

read:
$GPGSV,9,12,157,31,20,65,236,22,23,18,177,14,28,18,261,20*7C

read:
,3,11,31,04,093,,32,78,081,29,37,28,151,33*42

read:
$GPGLL,****.90315.84932,W,1*****1.00,A,A*79

read:
**$GPRMC,1****2.00,A,5****5.90332,N,000.84927,W,0.000,,241112,,,A*66
Time: 14:29:42
Date: 11/24/12
Lat: +*** **' 1.99"
Long: -***' 29.56"


Only real issue is not being able to upload with 1.0 and is there something very simple I can run to output the data from the GPS (attached to pin4) to the terminal?
« Last Edit: November 24, 2012, 09:43:22 am by ElProblemo » Logged

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Quote
Any help to get it to upload using the latest Arduino would be appreciated.
The exact messages that you get when you try to compile using 1.0 would be useful. The compiler, as I recall, practically holds your hand though, doing everything but typing the changes for you.
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The exact messages that you get when you try to compile using 1.0 would be useful. The compiler, as I recall, practically holds your hand though, doing everything but typing the changes for you.



In file included from sketch_nov24a.ino:4:
D:\arduino-1.0.2-windows\arduino-1.0.2\libraries\NewSoftSerial/NewSoftSerial.h:55: error: conflicting return type specified for 'virtual void NewSoftSerial::write(uint8_t)'
D:\arduino-1.0.2-windows\arduino-1.0.2\hardware\arduino\cores\arduino/Print.h:48: error:   overriding 'virtual size_t Print::write(uint8_t)'
sketch_nov24a.ino: In function 'void loop()':
sketch_nov24a:123: error: 'BYTE' was not declared in this scope

As of Arduino 1.0, the 'BYTE' keyword is no longer supported.
Please use Serial.write() instead.

Highlighted in the cose is:
Code:
    Serial.print(latitude/1000000, DEC); Serial.print('\°', BYTE); Serial.print(' ');
« Last Edit: November 24, 2012, 10:43:07 am by ElProblemo » Logged

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User downloaded libraries DO NOT go in the core libraries folder. Delete your install of Arduino 1.0.2, and start over.

Then, NewSoftSerial is NOT to be used with 1.0+. Use SoftwareSerial, instead.
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