yes I do.
Here is the code I have so far
It displays the date and time in the serial menu.
Now what I want is to have a date set like this
int Day = 21;
int Month = 1;
int Year = 2011;
int Hour = 14;
int Min = 29;
int Sec = 59;
and I want it to take the current date from the gps and figure out how far away it is in this format
Days:Hour:Min:Sec
I am completely clueless as to how to accomplish this.
Any ideas?
*note the code is modified from Mikal Hart's Tiny Gps which is what my reverse geocache box uses.
Code: Select all#include <NewSoftSerial.h>
#include <TinyGPS.h>
/* This sample code demonstrates the normal use of a TinyGPS object.
It requires the use of NewSoftSerial, and assumes that you have a
4800-baud serial GPS device hooked up on pins 2(rx) and 3(tx).
*/
TinyGPS gps;
NewSoftSerial nss(3, 2);
void gpsdump(TinyGPS &gps);
bool feedgps();
void printFloat(double f, int digits = 2);
int Gpspwr = 7; // Gps power connected to pin 7
void setup()
{
pinMode(Gpspwr, OUTPUT); // Set a digital pin for the GPS Power
digitalWrite(Gpspwr, HIGH); // Turn the Gps on
Serial.begin(115200);
nss.begin(4800);
Serial.print("Testing TinyGPS library v. "); Serial.println(TinyGPS::library_version());
Serial.println("by Mikal Hart");
Serial.println();
Serial.print("Sizeof(gpsobject) = "); Serial.println(sizeof(TinyGPS));
Serial.println();
}
void loop()
{
bool newdata = false;
unsigned long start = millis();
// Every 5 seconds we print an update
while (millis() - start < 5000)
{
if (feedgps())
newdata = true;
}
if (newdata)
{
Serial.println("Acquired Data");
Serial.println("-------------");
gpsdump(gps);
Serial.println("-------------");
Serial.println();
}
}
void printFloat(double number, int digits)
{
// Handle negative numbers
if (number < 0.0)
{
Serial.print('-');
number = -number;
}
// Round correctly so that print(1.999, 2) prints as "2.00"
double rounding = 0.5;
for (uint8_t i=0; i<digits; ++i)
rounding /= 10.0;
number += rounding;
// Extract the integer part of the number and print it
unsigned long int_part = (unsigned long)number;
double remainder = number - (double)int_part;
Serial.print(int_part);
// Print the decimal point, but only if there are digits beyond
if (digits > 0)
Serial.print(".");
// Extract digits from the remainder one at a time
while (digits-- > 0)
{
remainder *= 10.0;
int toPrint = int(remainder);
Serial.print(toPrint);
remainder -= toPrint;
}
}
void gpsdump(TinyGPS &gps)
{
long lat, lon;
float flat, flon;
unsigned long age, date, time, chars;
int year;
byte month, day, hour, minute, second, hundredths;
unsigned short sentences, failed;
int Mo;
int Dy;
int Yr;
int Hr;
int Min;
int Sec;
gps.crack_datetime(&year, &month, &day, &hour, &minute, &second, &hundredths, &age);
Mo = (static_cast<int>(month));
Dy = (static_cast<int>(day));
Yr = (year);
Hr = (static_cast<int>(hour));
Min = (static_cast<int>(minute));
Sec = (static_cast<int>(second));
Serial.print(Mo);Serial.print("/");Serial.print(Dy);Serial.print("/");Serial.println(Yr);
Serial.print(Hr-6); Serial.print(":"); Serial.print(Min);Serial.print(":"); Serial.println(Sec);
}
bool feedgps()
{
while (nss.available())
{
if (gps.encode(nss.read()))
return true;
}
return false;
}