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@Longlius
Created March 9, 2016 23:57
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Arduino-based GPS logger code
#include <SD.h>
#include <TinyGPS.h>
#include <SoftwareSerial.h>
SoftwareSerial shield(2,3); // configure software serial port
// Create an instance of the TinyGPS object
TinyGPS gps;
void setup()
{
pinMode(10, OUTPUT);
shield.begin(9600);
Serial.begin(9600);
// check that the microSD card exists and can be used v
if (!SD.begin(10)) {
Serial.println("Card failed, or not present");
// stop the sketch
return;
}
Serial.println("SD card is ready");
}
void getgps(TinyGPS &gps)
{
float latitude, longitude;
int year;
byte month, day, hour, minute, second, hundredths;
//decode and display position data
gps.f_get_position(&latitude, &longitude);
File dataFile = SD.open("DATA.TXT", FILE_WRITE);
// if the file is ready, write to it
if (dataFile)
{
dataFile.print("{'Lat': ");
dataFile.print(latitude,5);
dataFile.print(", ");
dataFile.print("'Long': ");
dataFile.print(longitude,5);
dataFile.print(", 'date': ");
// decode and display time data
gps.crack_datetime(&year,&month,&day,&hour,&minute,&second,&hundredths);
// correct for your time zone as in Project #45
hour=hour+11;
if (hour>23)
{
hour=hour-24;
}
if (hour<10)
{
dataFile.print("0");
}
dataFile.print(hour, DEC);
dataFile.print(":");
if (minute<10)
{
dataFile.print("0");
}
dataFile.print(minute, DEC);
dataFile.print(":");
if (second<10)
{
dataFile.print("0");
}
dataFile.print(second, DEC);
dataFile.print(", 'speed': '");
dataFile.print(gps.f_speed_kmph());
dataFile.println("km/h'}");
dataFile.close(); // this is mandatory
delay(10000); // record a measurement about every 10 seconds
}
}
void loop()
{
byte a;
if ( shield.available() > 0 ) // if there is data coming into the serial line
{
a = shield.read(); // get the byte of data
if(gps.encode(a)) // if there is valid GPS data...
{
getgps(gps); // grab the data and display it on the LCD
}
}
}
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