LoRa_APRS_Tracker111/src/utils.cpp

115 lines
3.1 KiB
C++

#include "configuration.h"
#include "lora_utils.h"
#include "display.h"
#include "utils.h"
extern Beacon *currentBeacon;
extern Configuration Config;
extern bool statusState;
extern uint32_t statusTime;
extern bool displayEcoMode;
extern uint32_t displayTime;
extern bool displayState;
extern int menuDisplay;
extern String versionDate;
namespace utils {
static char locator[11];
// The letterize and getMaidenheadLocator functions are
// Copyright (c) 2021 Mateusz Salwach
// MIT License
static char letterize(int x) {
return (char) x + 65;
}
char *getMaidenheadLocator(double lat, double lon, int size) {
double LON_F[]={20,2.0,0.083333,0.008333,0.0003472083333333333};
double LAT_F[]={10,1.0,0.0416665,0.004166,0.0001735833333333333};
int i;
lon += 180;
lat += 90;
if (size <= 0 || size > 10) size = 6;
size/=2; size*=2;
for (i = 0; i < size/2; i++){
if (i % 2 == 1) {
locator[i*2] = (char) (lon/LON_F[i] + '0');
locator[i*2+1] = (char) (lat/LAT_F[i] + '0');
} else {
locator[i*2] = letterize((int) (lon/LON_F[i]));
locator[i*2+1] = letterize((int) (lat/LAT_F[i]));
}
lon = fmod(lon, LON_F[i]);
lat = fmod(lat, LAT_F[i]);
}
locator[i*2]=0;
return locator;
}
char *ax25_base91enc(char *s, uint8_t n, uint32_t v) {
/* Creates a Base-91 representation of the value in v in the string */
/* pointed to by s, n-characters long. String length should be n+1. */
for(s += n, *s = '\0'; n; n--) {
*(--s) = v % 91 + 33;
v /= 91;
}
return(s);
}
static String padding(unsigned int number, unsigned int width) {
String result;
String num(number);
if (num.length() > width) {
width = num.length();
}
for (unsigned int i = 0; i < width - num.length(); i++) {
result.concat('0');
}
result.concat(num);
return result;
}
String createDateString(time_t t) {
return String(padding(year(t), 4) + "-" + padding(month(t), 2) + "-" + padding(day(t), 2));
}
String createTimeString(time_t t) {
return String(padding(hour(t), 2) + ":" + padding(minute(t), 2) + ":" + padding(second(t), 2));
}
void checkStatus() {
if (statusState) {
uint32_t statusTx = millis() - statusTime;
if (statusTx > 15*60*1000) {
String packet = currentBeacon->callsign + ">APLRT1";
if (Config.path != "") {
packet += "," + Config.path;
}
packet += ":>https://github.com/richonguzman/LoRa_APRS_Tracker " + versionDate;
LoRa_Utils::sendNewPacket(packet);
statusState = false;
}
}
}
void checkDisplayEcoMode() {
uint32_t lastDisplayTime = millis() - displayTime;
if (displayEcoMode && menuDisplay==0 && millis()>10*1000 && lastDisplayTime >= Config.displayTimeout*1000) {
display_toggle(false);
displayState = false;
}
}
String getSmartBeaconState() {
if (currentBeacon->smartBeaconState) {
return "On";
}
return "Off";
}
}