// --------------------------------------------------------------------------

// APRS config (aprs.c)

// --------------------------------------------------------------------------

// Set your callsign and SSID here. Common values for the SSID are

// (from http://zlhams.wikidot.com/aprs-ssidguide):

//

// - Balloons:  11

// - Cars:       9

// - Home:       0

// - IGate:      5

#define S_CALLSIGN      "MYCALL"

#define S_CALLSIGN_ID   11

// Destination callsign: APRS (with SSID=0) is usually okay.

#define D_CALLSIGN      "APRS"

#define D_CALLSIGN_ID   0

// Digipeating paths:

// (read more about digipeating paths here: http://wa8lmf.net/DigiPaths/ )

// The recommended digi path for a balloon is WIDE2-1 or pathless. The default

// is pathless. Uncomment the following two lines for WIDE2-1 path:

#define DIGI_PATH1      "WIDE2"

#define DIGI_PATH1_TTL  1

// APRS comment: this goes in the comment portion of the APRS message. You

// might want to keep this short. The longer the packet, the more vulnerable

// it is to noise.

#define APRS_COMMENT    "Trackuino reminder: replace callsign with your own"

/*

 * aprs.c

 *

 * Created: 11/8/2012 3:40:57 PM

 *  Author: ethanzonca

 */ 

#include "../config.h"

#include "aprs.h"

#include "ax25.h"

#include <stdio.h>

const char *gps_aprs_lat = "somelatitudesomelatitudesomelatitudesomelatitudesomelatitudesomelatitude";

const char *gps_aprs_lon = "somelongitudesomelongitudesomelongitudesomelongitudesomelongitudesomelongitude";

const char *gps_time = "sometimedatasometimedatasometimedatasometimedatasometimedatasometimedata";

float gps_altitude = 123.5;

int gps_course = 5;

int gps_speed = 13;

float meters_to_feet(float m)

{

  // 10000 ft = 3048 m

  return m / 0.3048;

}

void aprs_send()

{

  char temp[12];                   // Temperature (int/ext)

  const struct s_address addresses[] = { 

    {D_CALLSIGN, D_CALLSIGN_ID},  // Destination callsign

    {S_CALLSIGN, S_CALLSIGN_ID},  // Source callsign (-11 = balloon, -9 = car)

#ifdef DIGI_PATH1

    {DIGI_PATH1, DIGI_PATH1_TTL}, // Digi1 (first digi in the chain)

#endif

#ifdef DIGI_PATH2

    {DIGI_PATH2, DIGI_PATH2_TTL}, // Digi2 (second digi in the chain)

#endif

  };

	// emz: modified this to get the size of the first address rather than the size of the struct itself, which fails

  ax25_send_header(addresses, sizeof(addresses)/sizeof(addresses[0]));

  ax25_send_byte('/');                // Report w/ timestamp, no APRS messaging. $ = NMEA raw data

  // ax25_send_string("021709z");     // 021709z = 2nd day of the month, 17:09 zulu (UTC/GMT)

  ax25_send_string(gps_time);         // 170915 = 17h:09m:15s zulu (not allowed in Status Reports)

  ax25_send_byte('h');

  ax25_send_string(gps_aprs_lat);     // Lat: 38deg and 22.20 min (.20 are NOT seconds, but 1/100th of minutes)

  ax25_send_byte('/');                // Symbol table

  ax25_send_string(gps_aprs_lon);     // Lon: 000deg and 25.80 min

  ax25_send_byte('O');                // Symbol: O=balloon, -=QTH

  snprintf(temp, 4, "%03d", (int)(gps_course + 0.5)); 

  ax25_send_string(temp);             // Course (degrees)

  ax25_send_byte('/');                // and

  snprintf(temp, 4, "%03d", (int)(gps_speed + 0.5));

  ax25_send_string(temp);             // speed (knots)

  ax25_send_string("/A=");            // Altitude (feet). Goes anywhere in the comment area

  snprintf(temp, 7, "%06ld", (long)(meters_to_feet(gps_altitude) + 0.5));

  ax25_send_string(temp);

  ax25_send_string("/Ti=");

  snprintf(temp, 6, "%d", 122);//sensors_int_lm60()); -- PUT SENSOR DATA HERE

  ax25_send_string(temp);

  ax25_send_string("/Te=");

  snprintf(temp, 6, "%d", 123);//sensors_ext_lm60());

  ax25_send_string(temp);

  ax25_send_string("/V=");

  snprintf(temp, 6, "%d", 123);//sensors_vin());

  ax25_send_string(temp);

  ax25_send_byte(' ');

  ax25_send_string(APRS_COMMENT);     // Comment

  ax25_send_footer();

  ax25_flush_frame();                 // Tell the modem to go

}

/*

 * aprs.h

 *

 * Created: 11/8/2012 3:41:04 PM

 *  Author: ethanzonca

 */ 

#ifndef APRS_H_

#define APRS_H_

void aprs_send();

#endif /* APRS_H_ */

//Licensing: Library from the Trackuino project

#include <inttypes.h>

#include "lib/aprs.h"

		//afsk_test();

		aprs_send();

		_delay_ms(400);

		_delay_ms(400);

		_delay_ms(400);

		_delay_ms(400);

		_delay_ms(400);

		_delay_ms(400);

    <Compile Include="lib\aprs.c">

      <SubType>compile</SubType>

    </Compile>

    <Compile Include="lib\aprs.h">

      <SubType>compile</SubType>

    </Compile>