Hello can i get a help,i want to do maybe a similiar thing with this post, but want to compare two coordinates.New coordinates are compared with previous coordinates.If the result is > 10 meters (0.01 km) or more, and if gps module can acknowledge that the modul is move it wil send a message to my device.
btw im using arduino nano,sim 800l and gps neo6m.
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To compare distances between nearby sets of GPS coordinates, the equirectangular approximation works well.
Some of the GPS libraries include a function for calculating the great-circle distance between two positions. Check your library documentation.
im using TinyGPS++ library can u show me which one is it to use?
#include <TinyGPS++.h>
#include <SoftwareSerial.h>
/*
This sample code demonstrates just about every built-in operation of TinyGPS++ (TinyGPSPlus).
It requires the use of SoftwareSerial, and assumes that you have a
4800-baud serial GPS device hooked up on pins 4(rx) and 3(tx).
*/
static const int RXPin = 4, TXPin = 3;
static const uint32_t GPSBaud = 4800;
// The TinyGPS++ object
TinyGPSPlus gps;
// The serial connection to the GPS device
SoftwareSerial ss(RXPin, TXPin);
// For stats that happen every 5 seconds
unsigned long last = 0UL;
void setup()
{
Serial.begin(115200);
ss.begin(GPSBaud);
Serial.println(F("KitchenSink.ino"));
Serial.println(F("Demonstrating nearly every feature of TinyGPS++"));
Serial.print(F("Testing TinyGPS++ library v. ")); Serial.println(TinyGPSPlus::libraryVersion());
Serial.println(F("by Mikal Hart"));
Serial.println();
}
void loop()
{
// Dispatch incoming characters
while (ss.available() > 0)
gps.encode(ss.read());
if (gps.location.isUpdated())
{
Serial.print(F("LOCATION Fix Age="));
Serial.print(gps.location.age());
Serial.print(F("ms Raw Lat="));
Serial.print(gps.location.rawLat().negative ? "-" : "+");
Serial.print(gps.location.rawLat().deg);
Serial.print("[+");
Serial.print(gps.location.rawLat().billionths);
Serial.print(F(" billionths], Raw Long="));
Serial.print(gps.location.rawLng().negative ? "-" : "+");
Serial.print(gps.location.rawLng().deg);
Serial.print("[+");
Serial.print(gps.location.rawLng().billionths);
Serial.print(F(" billionths], Lat="));
Serial.print(gps.location.lat(), 6);
Serial.print(F(" Long="));
Serial.println(gps.location.lng(), 6);
}
else if (gps.date.isUpdated())
{
Serial.print(F("DATE Fix Age="));
Serial.print(gps.date.age());
Serial.print(F("ms Raw="));
Serial.print(gps.date.value());
Serial.print(F(" Year="));
Serial.print(gps.date.year());
Serial.print(F(" Month="));
Serial.print(gps.date.month());
Serial.print(F(" Day="));
Serial.println(gps.date.day());
}
else if (gps.time.isUpdated())
{
Serial.print(F("TIME Fix Age="));
Serial.print(gps.time.age());
Serial.print(F("ms Raw="));
Serial.print(gps.time.value());
Serial.print(F(" Hour="));
Serial.print(gps.time.hour());
Serial.print(F(" Minute="));
Serial.print(gps.time.minute());
Serial.print(F(" Second="));
Serial.print(gps.time.second());
Serial.print(F(" Hundredths="));
Serial.println(gps.time.centisecond());
}
else if (gps.speed.isUpdated())
{
Serial.print(F("SPEED Fix Age="));
Serial.print(gps.speed.age());
Serial.print(F("ms Raw="));
Serial.print(gps.speed.value());
Serial.print(F(" Knots="));
Serial.print(gps.speed.knots());
Serial.print(F(" MPH="));
Serial.print(gps.speed.mph());
Serial.print(F(" m/s="));
Serial.print(gps.speed.mps());
Serial.print(F(" km/h="));
Serial.println(gps.speed.kmph());
}
else if (gps.course.isUpdated())
{
Serial.print(F("COURSE Fix Age="));
Serial.print(gps.course.age());
Serial.print(F("ms Raw="));
Serial.print(gps.course.value());
Serial.print(F(" Deg="));
Serial.println(gps.course.deg());
}
else if (gps.altitude.isUpdated())
{
Serial.print(F("ALTITUDE Fix Age="));
Serial.print(gps.altitude.age());
Serial.print(F("ms Raw="));
Serial.print(gps.altitude.value());
Serial.print(F(" Meters="));
Serial.print(gps.altitude.meters());
Serial.print(F(" Miles="));
Serial.print(gps.altitude.miles());
Serial.print(F(" KM="));
Serial.print(gps.altitude.kilometers());
Serial.print(F(" Feet="));
Serial.println(gps.altitude.feet());
}
else if (gps.satellites.isUpdated())
{
Serial.print(F("SATELLITES Fix Age="));
Serial.print(gps.satellites.age());
Serial.print(F("ms Value="));
Serial.println(gps.satellites.value());
}
else if (gps.hdop.isUpdated())
{
Serial.print(F("HDOP Fix Age="));
Serial.print(gps.hdop.age());
Serial.print(F("ms raw="));
Serial.print(gps.hdop.value());
Serial.print(F(" hdop="));
Serial.println(gps.hdop.hdop());
}
else if (millis() - last > 5000)
{
Serial.println();
if (gps.location.isValid())
{
static const double LONDON_LAT = 51.508131, LONDON_LON = -0.128002;
double distanceToLondon =
TinyGPSPlus::distanceBetween(
gps.location.lat(),
gps.location.lng(),
LONDON_LAT,
LONDON_LON);
double courseToLondon =
TinyGPSPlus::courseTo(
gps.location.lat(),
gps.location.lng(),
LONDON_LAT,
LONDON_LON);
Serial.print(F("LONDON Distance="));
Serial.print(distanceToLondon/1000, 6);
Serial.print(F(" km Course-to="));
Serial.print(courseToLondon, 6);
Serial.print(F(" degrees ["));
Serial.print(TinyGPSPlus::cardinal(courseToLondon));
Serial.println(F("]"));
}
Serial.print(F("DIAGS Chars="));
Serial.print(gps.charsProcessed());
Serial.print(F(" Sentences-with-Fix="));
Serial.print(gps.sentencesWithFix());
Serial.print(F(" Failed-checksum="));
Serial.print(gps.failedChecksum());
Serial.print(F(" Passed-checksum="));
Serial.println(gps.passedChecksum());
if (gps.charsProcessed() < 10)
Serial.println(F("WARNING: No GPS data. Check wiring."));
last = millis();
Serial.println();
}
}
A Google search on;
Arduino TinyGPS++
Leads to this page;
http://arduiniana.org/libraries/tinygpsplus/
Scroll down this reference for TinyGPS++ and you should find the function you want.
This one. The function called TinyGPSPlus::distanceBetween(). It returns the distance in kilometers.
static const double LONDON_LAT = 51.508131, LONDON_LON = -0.128002;
double distanceToLondon =
TinyGPSPlus::distanceBetween(
gps.location.lat(),
gps.location.lng(),
LONDON_LAT,
LONDON_LON);
Indeed, so.
I have tested it by giving a tracker the co-ordinates of a GPS reference station, the location of these (in the UK) are known to a couple of cm.
The tracker was reading a good GPS with a good view of the Sky and horizon, when I was 25M away from the reference location, the tracker got the calculation accurate to around 1M.
from the examples can i use it when its the last live location?
static double LastLAT = 51.508131;
static double lastLON = -0.128002;
double newLat = gps.location.lat();
double newLon = gps.location.lng();
double distanceSinceLastLocation =
TinyGPSPlus::distanceBetween(
newLat, newLon,
lastLAT, lastLON);
lastLAT = newLat;
lastLon = newLon;
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