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Commit 73f4fb11 authored by roaa1g19's avatar roaa1g19
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made _rodGPS_Distance() function for accurate distance calcs

parent f1b4566a
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......@@ -14,6 +14,4 @@ void setup()
void loop()
{
_rodGPS_MakeReading(&gprmc_buff, &test);
Serial.print(std::atof("32.575"));
Serial.write("\n\n");
}
......@@ -26,10 +26,10 @@ void _rodGPS_PrintGPRMC(simple_GPRMC* gprmc_data)
Serial.write(gprmc_data->DATE[5]);
Serial.write("\nLatitude: ");
Serial.write((uint8_t*)&(gprmc_data->LATI),10);
Serial.write((uint8_t*)&(gprmc_data->LATI),LATI_SIZE);
Serial.write(gprmc_data->LATI_DIR);
Serial.write(" Longitude: ");
Serial.write((uint8_t*)&(gprmc_data->LONG),11);
Serial.write((uint8_t*)&(gprmc_data->LONG),LONG_SIZE);
Serial.write(gprmc_data->LONG_DIR);
Serial.write("\n\n");
......@@ -42,8 +42,13 @@ double _rodGPS_SimpleDistance(simple_GPRMC* coord_1, simple_GPRMC* coord_2)
return sqrt( dx*dx + dy*dy );
}
double _rodGPS_Distance(simple_GPRMC* coord_1, simple_GPRMC* coord_2)
{
return 6378388 * acos(sin(std::atof(coord_1->LATI)) * sin(std::atof(coord_2->LATI)) + cos(std::atof(coord_1->LATI)) * cos(std::atof(coord_2->LATI)) * cos(std::atof(coord_2->LONG) - std::atof(coord_1->LONG)));
}
static char char_buff[5];
byte _rodGPS_MakeReading(simple_GPRMC* gprmc1, simple_GPRMC* gprmc2)
uint8_t _rodGPS_MakeReading(simple_GPRMC* gprmc1, simple_GPRMC* gprmc2)
{
while(Serial2.available() == 0) {;}
......@@ -102,7 +107,7 @@ byte _rodGPS_MakeReading(simple_GPRMC* gprmc1, simple_GPRMC* gprmc2)
_rodGPS_PrintGPRMC(gprmc1);
Serial.write("Distance: ");
Serial.println(String((_rodGPS_SimpleDistance(gprmc1,gprmc2)),2));
Serial.println(String((_rodGPS_Distance(gprmc1,gprmc2)),2));
Serial.write("\n\n");
for(byte i = 0; i < 10; i++)
......
#ifndef RODGPS_HPP
#define RODGPS_HPP
#include <Arduino.h>
#include <HardwareSerial.h>
#include <string.h>
#ifndef RODGPS_HPP
#define RODGPS_HPP
#define LATI_SIZE 10
#define LONG_SIZE 11
typedef struct simple_GPRMC
{
......@@ -11,14 +14,15 @@ typedef struct simple_GPRMC
char DATE[6];
char VALID;
char LATI[10];
char LATI[LATI_SIZE];
char LATI_DIR;
char LONG[11];
char LONG[LONG_SIZE];
char LONG_DIR;
};
void _rodGPS_PrintGPRMC(simple_GPRMC* gprmc_data);
double _rodGPS_SimpleDistance(simple_GPRMC* coord_1, simple_GPRMC* coord_2);
byte _rodGPS_MakeReading(simple_GPRMC* gprmc1, simple_GPRMC* gprmc2);
void _rodGPS_PrintGPRMC(simple_GPRMC* gprmc_data); /* Print out the GPRMC data */
double _rodGPS_SimpleDistance(simple_GPRMC* coord_1, simple_GPRMC* coord_2); /* Quicker distance calculation, good enough for small distances */
double _rodGPS_Distance(simple_GPRMC* coord_1, simple_GPRMC* coord_2); /* Accurate distance calculations */
uint8_t _rodGPS_MakeReading(simple_GPRMC* gprmc1, simple_GPRMC* gprmc2); /* Make a GPRMC reading from GPS IC */
#endif /* RODGPS_HPP */
\ No newline at end of file
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