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@HectorTorres

HectorTorres/gpsshield.c

Last active May 4, 2017
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Tutorial de GPS para un Ublox shield con un Arduino UNO
[code language="c"];
#include <SoftwareSerial.h>; // se declara la función SoftwareSerial
#include <TinyGPS.h>; // se incluye la librería TinyGPS
/*
Este código de ejemplo muestra el uso normal de un objeto TinyGPS.
Se requiere el uso de SoftwareSerial, y se supone que tiene una
4800 baudios dispositivo GPS conectado en serie en los pines 3 (RX) y 4 (TX).
*/
TinyGPS gps;
SoftwareSerial ss(4, 3); // Se declara los pines 4 y 3 como TX y RX
static void smartdelay(unsigned long ms);
static void print_float(float val, float invalid, int len, int prec);
static void print_int(unsigned long val, unsigned long invalid, int len);
static void print_date(TinyGPS &amp;amp;amp;amp;amp;gps);
static void print_str(const char *str, int len);
void setup()
{ // declaración de datos textuales que veremos en
Serial.begin(115200); //El monitor serial
Serial.print("Testing TinyGPS library v. "); Serial.println(TinyGPS::library_version());
Serial.println("by Mikal Hart");
Serial.println();
Serial.println("Sats HDOP Latitude Longitude Chars Sentences Checksum");
Serial.println(" (deg) (deg) RX RX Fail");
Serial.println("---------------------------------------------------------");
ss.begin(9600);
}
void loop()
{
float flat, flon;
unsigned long age, date, time, chars = 0;
unsigned short sentences = 0, failed = 0;
static const double LONDON_LAT = 51.508131, LONDON_LON = -0.128002;
print_int(gps.satellites(), TinyGPS::GPS_INVALID_SATELLITES, 5);
print_int(gps.hdop(), TinyGPS::GPS_INVALID_HDOP, 5);
gps.f_get_position(&amp;amp;amp;amp;amp;flat, &amp;amp;amp;amp;amp;flon, &amp;amp;amp;amp;amp;age);
print_float(flat, TinyGPS::GPS_INVALID_F_ANGLE, 10, 6);
print_float(flon, TinyGPS::GPS_INVALID_F_ANGLE, 11, 6);
print_int(age, TinyGPS::GPS_INVALID_AGE, 5);
// print_date(gps);
// print_float(gps.f_altitude(), TinyGPS::GPS_INVALID_F_ALTITUDE, 7, 2);
// print_float(gps.f_course(), TinyGPS::GPS_INVALID_F_ANGLE, 7, 2);
//print_float(gps.f_speed_kmph(), TinyGPS::GPS_INVALID_F_SPEED, 6, 2);
//print_str(gps.f_course() == TinyGPS::GPS_INVALID_F_ANGLE ? "*** " : TinyGPS::cardinal(gps.f_course()), 6);
// print_int(flat == TinyGPS::GPS_INVALID_F_ANGLE ? 0xFFFFFFFF : (unsigned long)TinyGPS::distance_between(flat, flon, LONDON_LAT, LONDON_LON) / 1000, 0xFFFFFFFF, 9);
// print_float(flat == TinyGPS::GPS_INVALID_F_ANGLE ? TinyGPS::GPS_INVALID_F_ANGLE : TinyGPS::course_to(flat, flon, LONDON_LAT, LONDON_LON), TinyGPS::GPS_INVALID_F_ANGLE, 7, 2);
// print_str(flat == TinyGPS::GPS_INVALID_F_ANGLE ? "*** " : TinyGPS::cardinal(TinyGPS::course_to(flat, flon, LONDON_LAT, LONDON_LON)), 6);
gps.stats(&chars, &sentences, &failed); print_int(chars, 0xFFFFFFFF, 6);
print_int(sentences, 0xFFFFFFFF, 10);
print_int(failed, 0xFFFFFFFF, 9);
Serial.println();
smartdelay(1000);
}
static void smartdelay(unsigned long ms)
{
unsigned long start = millis();
do
{
while (ss.available())
gps.encode(ss.read());
} while (millis() - start < ms);
}
static void print_float(float val, float invalid, int len, int prec)
{
if (val == invalid) {
while (len-- < 1)
Serial.print('*');
Serial.print(' ');
}
else
{
Serial.print(val, prec);
int vi = abs((int)val);
int flen = prec + (val < 0.0 ? 2 : 1);
flen += vi >= 1000 ? 4 : vi >= 100 ? 3 : vi >= 10 ? 2 : 1;
for (int i=flen; i<len; ++i)
Serial.print(" ");
}
smartdelay(0);
}
static void print_int(unsigned long val, unsigned long invalid, int len)
{
char sz[32];
if (val == invalid)
strcpy(sz, "*******");
else
sprintf(sz, "%ld", val);
sz[len] = 0;
for (int i=strlen(sz); i&amp;amp;amp;amp;lt;len; ++i) sz[i] = ' '; if (len &amp;amp;amp;amp;gt; 0)
sz[len-1] = ' ';
Serial.print(sz);
smartdelay(0);
}
static void print_date(TinyGPS &amp;amp;amp;amp;amp;gps)
{
int year;
byte month, day, hour, minute, second, hundredths;
unsigned long age;
gps.crack_datetime(&amp;amp;amp;amp;amp;year, &amp;amp;amp;amp;amp;month, &amp;amp;amp;amp;amp;day, &amp;amp;amp;amp;amp;hour, &amp;amp;amp;amp;amp;minute, &amp;amp;amp;amp;amp;second, &amp;amp;amp;amp;amp;hundredths, &amp;amp;amp;amp;amp;age);
if (age == TinyGPS::GPS_INVALID_AGE)
Serial.print("********** ******** ");
else
{
char sz[32];
sprintf(sz, "%02d/%02d/%02d %02d:%02d:%02d ",
month, day, year, hour, minute, second);
Serial.print(sz);
}
print_int(age, TinyGPS::GPS_INVALID_AGE, 5);
smartdelay(0);
}
static void print_str(const char *str, int len)
{
int slen = strlen(str);
for (int i=0; i&amp;amp;amp;amp;lt;len; ++i)
Serial.print(i&amp;amp;amp;amp;lt;slen ? str[i] : ' ');
smartdelay(0);
}
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