83 lines
2.6 KiB
Arduino
83 lines
2.6 KiB
Arduino
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#include <NMEAGPS.h>
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//======================================================================
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// Program: NMEAdistance.ino
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//
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// Description: Display distance from a base location.
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//
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// Prerequisites:
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// 1) NMEA.ino works with your device (correct TX/RX pins and baud rate)
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// 2) GPS_FIX_LOCATION has been enabled.
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// 3) A sentence that contains lat/long has been enabled (GGA, GLL or RMC).
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// 4) Your device sends at least one of those sentences.
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//
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// 'Serial' is for debug output to the Serial Monitor window.
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//
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// License:
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// Copyright (C) 2014-2017, SlashDevin
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//
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// This file is part of NeoGPS
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//
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// NeoGPS is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// NeoGPS is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with NeoGPS. If not, see <http://www.gnu.org/licenses/>.
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//
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//======================================================================
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#include <GPSport.h>
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//------------------------------------------------------------
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// Check that the config files are set up properly
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#if !defined( NMEAGPS_PARSE_RMC ) & \
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!defined( NMEAGPS_PARSE_GGA ) & \
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!defined( NMEAGPS_PARSE_GLL )
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#error You must uncomment at least one of NMEAGPS_PARSE_RMC, NMEAGPS_PARSE_GGA or NMEAGPS_PARSE_GLL in NMEAGPS_cfg.h!
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#endif
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#if !defined( GPS_FIX_LOCATION )
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#error You must uncomment GPS_FIX_LOCATION in GPSfix_cfg.h!
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#endif
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NMEAGPS gps;
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// The base location, in degrees * 10,000,000
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NeoGPS::Location_t base( -253448688L, 1310324914L ); // Ayers Rock, AU
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void setup()
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{
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DEBUG_PORT.begin(9600);
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DEBUG_PORT.println( F("NMEAdistance.ino started.") );
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DEBUG_PORT.println( F("Looking for GPS device on " GPS_PORT_NAME) );
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gpsPort.begin(9600);
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} // setup
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void loop()
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{
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while (gps.available( gpsPort )) {
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gps_fix fix = gps.read(); // save the latest
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// When we have a location, calculate how far away we are from the base location.
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if (fix.valid.location) {
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float range = fix.location.DistanceMiles( base );
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DEBUG_PORT.print( F("Range: ") );
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DEBUG_PORT.print( range );
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DEBUG_PORT.println( F(" Miles") );
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} else
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// Waiting...
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DEBUG_PORT.print( '.' );
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}
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} // loop
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