sforkowany z mirror/RS41ng
52 wiersze
1.7 KiB
C
52 wiersze
1.7 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "aprs.h"
|
|
#include "aprs_weather.h"
|
|
|
|
size_t aprs_generate_weather_report(uint8_t *payload, size_t length, telemetry_data *data,
|
|
bool include_timestamp, char *comment)
|
|
{
|
|
char timestamp[12];
|
|
|
|
int8_t la_degrees, lo_degrees;
|
|
uint8_t la_minutes, la_h_minutes, lo_minutes, lo_h_minutes;
|
|
|
|
convert_degrees_to_dmh(data->gps.latitude_degrees_1000000 / 10, &la_degrees, &la_minutes, &la_h_minutes);
|
|
convert_degrees_to_dmh(data->gps.longitude_degrees_1000000 / 10, &lo_degrees, &lo_minutes, &lo_h_minutes);
|
|
|
|
if (include_timestamp) {
|
|
aprs_generate_timestamp(timestamp, sizeof(timestamp), data);
|
|
} else {
|
|
strncpy(timestamp, "!", sizeof(timestamp));
|
|
}
|
|
|
|
int32_t temperature_fahrenheits = (data->temperature_celsius_100 * 9 / 5) / 100 + 32;
|
|
uint32_t pressure_mbar_10 = data->pressure_mbar_100 / 10;
|
|
uint16_t humidity_percentage = data->humidity_percentage_100 / 100;
|
|
if (humidity_percentage > 99) {
|
|
humidity_percentage = 0; // Zero represents 100%
|
|
} else if (humidity_percentage < 1) {
|
|
humidity_percentage = 1;
|
|
}
|
|
|
|
aprs_packet_counter++;
|
|
|
|
return snprintf((char *) payload,
|
|
length,
|
|
("%s%02d%02d.%02u%c%c%03d%02u.%02u%c%c.../...g...t%03dh%02ub%05u%s"),
|
|
timestamp,
|
|
abs(la_degrees), la_minutes, la_h_minutes,
|
|
la_degrees > 0 ? 'N' : 'S',
|
|
'/', // Primary symbol table
|
|
abs(lo_degrees), lo_minutes, lo_h_minutes,
|
|
lo_degrees > 0 ? 'E' : 'W',
|
|
'_', // Weather station symbol
|
|
(int) temperature_fahrenheits,
|
|
(unsigned int) humidity_percentage,
|
|
(unsigned int) pressure_mbar_10,
|
|
comment
|
|
);
|
|
}
|