I am trying to write the GPS data from a Dexter industries How to Use the Arduino GPS Shield For the First Time For Beginners
with a nano. with this code
/*
This program demonstrates the dGPS library from Dexter Industries for Arduino
For use with the Dexter Industries GPS Shield. The dGPS can be found here:
- http://dexterindustries.com/Arduino-GPS_Shield.html
This code was originally based on the work of others. You can see the original work here:
- SoftwareSerial Library: http://www.arduino.cc/en/Reference/SoftwareSerial
- GPS Tutorial: http://www.arduino.cc/playground/Tutorials/GPS
See our Arduino GPS Converting Coordinates for information on converting coordinates
from GPS Style Coordinates (ddmm.ssss) to Decimal Style Coordinates (dd.mmssss).
How it works:
- The dGPS requires the SoftwareSerial.h library.
- The GPS is initialized in the setup function.
- The GPS is updated: values for location, time, etc, are updated using the ".update" function.
- The values are read using their respective calls. These values stay the same until "update" is called again.
Simplified by Jeff Conrad to just show the specific current measurements, no destination.
*/
#include "string.h"
#include "ctype.h"
#include "SoftwareSerial.h"
#include "dGPS.h"
#include <SPI.h>
#include <SD.h>
File myFile;
// Software serial TX & RX Pins for the GPS module
// Initiate the software serial connection
int ledPin = 13; // LED test pin
dGPS dgps = dGPS(); // Construct dGPS class
void setup() {
pinMode(8, OUTPUT);
Serial.end(); // Close any previously established connections
Serial.begin(9600); // Serial output back to computer. On.
dgps.init(); // Run initialization routine for dGPS.
if (!SD.begin(4)) {
Serial.println("initialization failed!");
while (1);
}
else
{
Serial.println("initialization done.");
}
delay(1000);
}
void loop() {
dgps.update(0, 0);
Serial.print("Latitude: ");
Serial.print(dgps.Lat(), 6); // Latitude - in DD.MMSSSS format (decimal-degrees format) (D-Degree; M-Minute; S-Second)
Serial.println(" degrees");
Serial.print("Longitude: ");
Serial.print(dgps.Lon(), 6); // Longitude - in DD.MMSSSS format (decimal-degrees format) (D-Degree; M-Minute; S-Second)
Serial.println(" degrees");
/*Serial.print("UTC Date(DDMMYY): ");
Serial.println(dgps.Date()); // UTC date. Date is in format: DDMMYY (D - Day; M - Month; Y-Year)
Serial.print("UTC Time: ");
Serial.println(dgps.Time()); // .Time returns the UTC time (GMT) in HHMMSS, 24 huor format (H-Hour; M-Minute; S-Second)
Serial.print("Status: ");
Serial.println(dgps.Status()); // A - Satellites acquired and a valid signal. V - No sats and not a valid signal.
Serial.print("Velocity: ");
Serial.print(dgps.Vel(), 6); // Velocity, in knots.
Serial.println(" knots");
Serial.print("Heading: ");
Serial.print(dgps.Head(), 6); // Heading, in degrees
Serial.println(" degrees");
Serial.print("Received CheckSum: ");
Serial.println(dgps.Checks()); //Checksum received from packet
Serial.print("Computed Checksum: ");
Serial.println(dgps.Checked(), HEX); //Checksum computed */
//dgps.updategga(); //updates the values of Number of Satellites, HDOP and Altitude
Serial.print("");
Serial.print("HDOP: ");
Serial.println(dgps.Hdop()); // HDOP
Serial.print("Altitude: ");
Serial.print(dgps.Alti()); // Altitude (in meters) above sea-level
Serial.println(" meters above sea level");
Serial.print("Satellites in use: ");
Serial.println(dgps.SatView()); // Number of Satellites in use
Serial.println("");
if (dgps.SatView() > 0) {
digitalWrite(8, HIGH);
}
else
{
digitalWrite(8, LOW);
}
// LONGITUDE RAW CREATION
myFile= SD.open("RAWLONG.txt", FILE_WRITE);
if (myFile) {
Serial.print("File Opened");
myFile.println("asdasdasd");
myFile.close();
}
/* // LATITUDE RAW CREATION
myFile = SD.open("RAWLAT.txt", FILE_WRITE);
if (myFile) {
myFile.println(dgps.Lat(), 6);
myFile.close();
}
// ALTITUDE RAW CREATION
myFile = SD.open("RAWALT.txt", FILE_WRITE);
if (myFile) {
myFile.println(dgps.Alti());
myFile.close();
}*/
}
when i run it it creates the file RAWLAT.txt but it doesn't write anything it the file.