eunkyoung kim / GPS

wrong calculation of longitude

Dependents:   GPS_HelloWorld GPS_Buzzer_Alert_Helloworld Twitter_GPS_Web_Client_WIZwiki-W7500

Fork of GPS by Boris Adryan

GPS.h@2:e2b8d86abee3, 2015-07-27 (annotated)

Committer:
eunkyoungkim
Date:
Mon Jul 27 04:55:38 2015 +0000
Revision:
2:e2b8d86abee3
Parent:
1:1d60e6a0ffd9 
wrong calculation value of longitude

Who changed what in which revision?

UserRevisionLine numberNew contents of line
8fromPi 1:1d60e6a0ffd9 1 /* mbed GPS Module Library
simon 0:15611c7938a3 2 * Copyright (c) 2008-2010, sford
8fromPi 1:1d60e6a0ffd9 3 * Copyright (c) 2013, B.Adryan
simon 0:15611c7938a3 4 *
simon 0:15611c7938a3 5 * Permission is hereby granted, free of charge, to any person obtaining a copy
simon 0:15611c7938a3 6 * of this software and associated documentation files (the "Software"), to deal
simon 0:15611c7938a3 7 * in the Software without restriction, including without limitation the rights
simon 0:15611c7938a3 8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
simon 0:15611c7938a3 9 * copies of the Software, and to permit persons to whom the Software is
simon 0:15611c7938a3 10 * furnished to do so, subject to the following conditions:
simon 0:15611c7938a3 11 *
simon 0:15611c7938a3 12 * The above copyright notice and this permission notice shall be included in
simon 0:15611c7938a3 13 * all copies or substantial portions of the Software.
simon 0:15611c7938a3 14 *
simon 0:15611c7938a3 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
simon 0:15611c7938a3 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
simon 0:15611c7938a3 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
simon 0:15611c7938a3 18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
simon 0:15611c7938a3 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
simon 0:15611c7938a3 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
simon 0:15611c7938a3 21 * THE SOFTWARE.
simon 0:15611c7938a3 22 */
simon 0:15611c7938a3 23
simon 0:15611c7938a3 24 #include "mbed.h"
simon 0:15611c7938a3 25
simon 0:15611c7938a3 26 #ifndef MBED_GPS_H
simon 0:15611c7938a3 27 #define MBED_GPS_H
simon 0:15611c7938a3 28
8fromPi 1:1d60e6a0ffd9 29 /** A GPS interface for reading from a serial GPS module */
simon 0:15611c7938a3 30 class GPS {
simon 0:15611c7938a3 31 public:
simon 0:15611c7938a3 32
8fromPi 1:1d60e6a0ffd9 33 /** Create the GPS interface, connected to the specified serial port and speed.
8fromPi 1:1d60e6a0ffd9 34 * for example, GlobalSat EM406-A (e.g. on SparkFun GPS Shield) is 4800 Baud,
8fromPi 1:1d60e6a0ffd9 35 * Adafruit Ultimate GPSv3 (connected to serial) is 9600 Baud
simon 0:15611c7938a3 36 */
8fromPi 1:1d60e6a0ffd9 37 GPS(PinName tx, PinName rx, int Baud);
simon 0:15611c7938a3 38
simon 0:15611c7938a3 39 /** Sample the incoming GPS data, returning whether there is a lock
simon 0:15611c7938a3 40 *
simon 0:15611c7938a3 41 * @return 1 if there was a lock when the sample was taken (and therefore .longitude and .latitude are valid), else 0
simon 0:15611c7938a3 42 */
simon 0:15611c7938a3 43 int sample();
simon 0:15611c7938a3 44
simon 0:15611c7938a3 45 /** The longitude (call sample() to set) */
simon 0:15611c7938a3 46 float longitude;
simon 0:15611c7938a3 47
simon 0:15611c7938a3 48 /** The latitude (call sample() to set) */
simon 0:15611c7938a3 49 float latitude;
simon 0:15611c7938a3 50
8fromPi 1:1d60e6a0ffd9 51 /** The time (call sample() to set) */
8fromPi 1:1d60e6a0ffd9 52 float time;
8fromPi 1:1d60e6a0ffd9 53
8fromPi 1:1d60e6a0ffd9 54 /** Number of satellites received (call sample() to set) */
8fromPi 1:1d60e6a0ffd9 55 int sats;
8fromPi 1:1d60e6a0ffd9 56
8fromPi 1:1d60e6a0ffd9 57 /** Horizontal dilusion of precision (call sample() to set) */
8fromPi 1:1d60e6a0ffd9 58 float hdop;
8fromPi 1:1d60e6a0ffd9 59
8fromPi 1:1d60e6a0ffd9 60 /** The altitude (call sample() to set)
8fromPi 1:1d60e6a0ffd9 61 Note that the accurate altitude is corrected by the geoid
8fromPi 1:1d60e6a0ffd9 62 See http://homepages.slingshot.co.nz/~geoff36/datum.htm
8fromPi 1:1d60e6a0ffd9 63 */
8fromPi 1:1d60e6a0ffd9 64 float alt;
8fromPi 1:1d60e6a0ffd9 65
8fromPi 1:1d60e6a0ffd9 66 /** The geoid (call sample() to set) */
8fromPi 1:1d60e6a0ffd9 67 float geoid;
8fromPi 1:1d60e6a0ffd9 68
8fromPi 1:1d60e6a0ffd9 69 /** The NMEA sentence */
8fromPi 1:1d60e6a0ffd9 70 char msg[256];
8fromPi 1:1d60e6a0ffd9 71
8fromPi 1:1d60e6a0ffd9 72
simon 0:15611c7938a3 73 private:
simon 0:15611c7938a3 74 float trunc(float v);
simon 0:15611c7938a3 75 void getline();
simon 0:15611c7938a3 76
simon 0:15611c7938a3 77 Serial _gps;
simon 0:15611c7938a3 78 };
simon 0:15611c7938a3 79
8fromPi 1:1d60e6a0ffd9 80 #endif