NMEA Library

Hello Everyone,

I am having a bit of trouble using the NMEA library, http://www.maartenlamers.com/nmea/
If I include the library in any sketch, I get the error below.

In file included from ------------------\Documents\arduino-0015\hardware\cores\arduino/WProgram.h:4,

–documents/arduino-0015/hardware/tools/avr/lib/gcc/…/…/avr/include/stdlib.h:111: error: expected unqualified-id before ‘int’

–documents/arduino-0015/hardware/tools/avr/lib/gcc/…/…/avr/include/stdlib.h:111: error: expected `)’ before ‘int’

–documents/arduino-0015/hardware/tools/avr/lib/gcc/…/…/avr/include/stdlib.h:111: error: expected `)’ before ‘int’

In file included from --Documents\arduino-0015\hardware\cores\arduino/WProgram.h:6,

I am pretty new to all this so I don’t know what to do,
This is the sketch I have used to demonstrate my point,

#include <nmea.h>
void setup()
void loop()

If anyone knows why this is happening or has any ideas of how to fix it please post!!!
Thanks Everyone!

Oh and I have tried on arduino IDE 15 & 16; on 16 I get the exact same error.

I haven't tried the library you've provided, but I have used TinyGPS with results, maybe you will to? http://arduiniana.org/libraries/TinyGPS

Yes I have tried that library, and it works, but the NMEA library has many extra features. Ones that I find very handy; for example, "distance to" and "course to". I think the error could be something wrong with the nmea.h file, does anyone know how i could fix this?

are you using the arduino mega? i'm not sure but i think it won't work on an duemilanove.

Any alternatives to tinygps , just for parsing lat/log? tks

Yes, I have tried it on the mega, and duemilanove. I have receive the same error no matter what comination of arduino 0015/ arduino 0016, and arduino mega/ arduino duemilanove.

In nmea.h, after including WConstans.h, add

undef abs

undef random

wiring.h redefines some macros defined in standard c/c++ headers. When the "real" definitions are parsed, it barfs. The #undfines "fix" it.

Thanks!!! OK so this is what the nmea.h file looks like now....

ifndef nmea_h

define nmea_h

include "WConstants.h" #define#undef abs#undef random

but im still getting an error, expected constructor, destructor, or type conversion before numeric constant

Im a real noob, did i do something wrong?

Nevermind, stupid mistake. Here is the working nmea.h file.
Thanks for everyone’s help!

nmea.cpp - NMEA 0183 sentence decoding library for Wiring & Arduino
Copyright (c) 2008 Maarten Lamers, The Netherlands.
All right reserved.

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/#ifndef nmea_h#define nmea_h#include “WConstants.h” #undef abs#undef random#define ALL 0 // connect to all datatypes
#define GPRMC 1 // connect only to GPRMC datatype
#define MTR 1.0 // meters per meter
#define KM 0.001 // kilometers per meter
#define MI 0.00062137112 // miles per meter
#define NM 0.00053995680 // nautical miles per meter
#define PARSEC 0.000000000000 // parsecs per meter (approximation)
#define MPS 0.51444444 // meters-per-second in one knot
#define KMPH 1.852 // kilometers-per-hour in one knot
#define MPH 1.1507794 // miles-per-hour in one knot
#define KTS 1.0 // knots in one knot
#define LIGHTSPEED 0.000000001716 // lightspeeds in one knot

class NMEA
NMEA(int connect); // constructor for NMEA parser object; parse sentences of GPRMC or all datatypes.
int decode(char c); // parse one character received from GPS; returns 1 when full sentence found w/ checksum OK, 0 otherwise
float gprmc_utc(); // returns decimal value of UTC term in last full GPRMC sentence
char gprmc_status(); // returns status character in last full GPRMC sentence (‘A’ or ‘V’)
float gprmc_latitude(); // signed degree-decimal value of latitude terms in last full GPRMC sentence
float gprmc_longitude(); // signed degree-decimal value of longitude terms in last full GPRMC sentence
float gprmc_speed(float unit); // speed-on-ground term in last full GPRMC sentence
float gprmc_course(); // track-angle-made-good term in last full GPRMC sentence
float gprmc_distance_to(float latitude, float longitude, float unit); // returns distance from last-known GPRMC position to given position
float gprmc_course_to(float latitude, float longitude); // returns initial course in degrees from last-known GPRMC position to given position
char* sentence(); // returns last received full sentence as zero terminated string
int terms(); // returns number of terms (including data type and checksum) in last received full sentence
char* term(int t); // returns term t of last received full sentence as zero terminated string
float term_decimal(int t); // returns the base-10 converted value of term[t] in last full sentence received
int libversion(); // returns software version number of NMEA library
// properties
int _gprmc_only;
float _gprmc_utc;
char _gprmc_status;
float _gprmc_lat;
float _gprmc_long;
float _gprmc_speed;
float _gprmc_angle;
char f_sentence[100];
char* f_term[30];
int f_terms;
int _terms;
char _sentence[100];
char* _term[30];
int n;
int _gprmc_tag;
int _state;
int _parity;
int _nt;
float _degs;
// methods
float distance_between (float lat1, float long1, float lat2, float long2, float units_per_meter);
float initial_course(float lat1, float long1, float lat2, float long2);
int _dehex(char a);
float _decimal(char* s);