Ciao a tutti,
sto provando ad utilizzare un gps skm53. Il codice è:
/*
This Sketch will run with the SkyNav SKM53 GPS
RXD Arduino Pin 11
TXD Arduino Pin 12
RST Leave Open
NC Leave Open
GND Ground
VCC +5
Make sure you download and save to your Arduino/Libraries folder TinyGPS.h
and NewSoftSerial.h files.
*/
#include <TinyGPS.h>
#include <SoftwareSerial.h>
unsigned long fix_age;
SoftwareSerial GPS(12,11);
TinyGPS gps;
void gpsdump(TinyGPS &gps);
bool feedgps();
void getGPS();
long lat, lon;
float LAT, LON;
void setup(){
GPS.begin(9600);
Serial.begin(9600);
}
void loop(){
long lat, lon;
unsigned long fix_age, time, date, speed, course;
unsigned long chars;
unsigned short sentences, failed_checksum;
// retrieves +/- lat/long in 100000ths of a degree
gps.get_position(&lat, &lon, &fix_age);
getGPS();
Serial.print("Latitude : ");
Serial.print(LAT/1000000,7);
Serial.print(" :: Longitude : ");
Serial.println(LON/1000000,7);
}
void getGPS(){
bool newdata = false;
unsigned long start = millis();
// Every 1 seconds we print an update
while (millis() - start < 1000)
{
if (feedgps ()){
newdata = true;
}
}
if (newdata)
{
gpsdump(gps);
}
}
bool feedgps(){
while (GPS.available())
{
if (gps.encode(GPS.read()))
return true;
}
return 0;
}
void gpsdump(TinyGPS &gps)
{
//byte month, day, hour, minute, second, hundredths;
gps.get_position(&lat, &lon);
LAT = lat;
LON = lon;
{
feedgps(); // If we don't feed the gps during this long routine, we may drop characters and get checksum errors
}
}
Il problema è che mi restituisce, dopo molto che è acceso, le coordinate:
LAT: 41.883312 - LON: 0.2100000
Queste coordinate risultano vicino barcellona, e non in italia.
Oppure
LAT: 0.000000 - LON: 0.2170000
In cosa sbaglio?