GPS.h

00001 #include "mbed.h"
00002 
00003 /**  A GPS interface for reading from a Globalsat EM-406 GPS Module */
00004 class GPS {
00005 public:
00006 
00007     /** Create the GPS interface, connected to the specified serial port
00008      */    
00009     GPS(PinName tx, PinName rx);
00010     
00011     /** Sample the incoming GPS data, returning whether there is a lock
00012      * 
00013      * @return 1 if there was a lock when the sample was taken (and therefore .longitude and .latitude are valid), else 0
00014      */
00015     int sample();
00016     float trunc(float v);
00017     /** The longitude (call sample() to set) */
00018     float longitude;
00019 
00020     /** The latitude (call sample() to set) */
00021     float latitude;
00022     int sate_in_view,lock;
00023     float time;
00024     
00025     
00026 private:
00027     
00028     void getline();
00029     
00030     Serial _gps;
00031     char msg[256];
00032 
00033 };