kopia lustrzana https://github.com/SQ9MDD/TTGO-T-Beam-LoRa-APRS
base91 compressed packets
Christian OE3CJB Bauer
rodzic
d3b3a368a8
commit
9054d21f4d
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@ -41,6 +41,8 @@ Now the DS18B20 is supported as well - uncomment line 31: // #define DS18B20
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by uncommenting <b>// #define SHOW_RX_PACKET</b> the tracker shows received LoRa APRS packets in raw format for the time in milliseconds defined in SHOW_RX_TIME - both in ...config.h<br>
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<br>
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<b>new features:</b><br>
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- compressed packets in tracker mode
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- symbol RV added
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- show RX packets
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- DS18B20 support (setable in config.h)
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- GPS switched off in WX_FIXED mode (only available with boards with HW-Version >=V1.0)
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@ -11,9 +11,14 @@
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//
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// licensed under CC BY-NC-SA
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//
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// version: V1.3
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// last update: 27.08.2020
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// change history
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// symbol RV added
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// compressed packets in tracker mode (base91)
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//
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// version: V1.2
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// last update: 02.01.2020
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//
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// change history
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// added course change to smart Beaconing
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// code cleaned
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@ -736,14 +741,29 @@ static void smartDelay(unsigned long ms)
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} while (millis() - start < ms);
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}
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char *ax25_base91enc(char *s, uint8_t n, uint32_t v)
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{
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/* Creates a Base-91 representation of the value in v in the string */
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/* pointed to by s, n-characters long. String length should be n+1. */
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for(s += n, *s = '\0'; n; n--)
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{
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*(--s) = v % 91 + 33;
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v /= 91;
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}
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return(s);
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}
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/////////////////////////////////////////////////////////////////////////////////////////
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//@APA Recalc GPS Position == generate APRS string
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void recalcGPS(){
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String Ns, Ew, helper;
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char helper_base91[] = {"0000\0"};
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float Tlat=48.2012, Tlon=15.6361;
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int i, Talt, lenalt;
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uint32_t aprs_lat, aprs_lon;
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float Lat=0.0;
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float Lon=0.0;
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float Tspeed=0, Tcourse=0;
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@ -931,48 +951,76 @@ case WX_MOVE:
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break;
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case TRACKER:
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default:
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for (i=0; i<Tcall.length();++i){ // remove unneeded "spaces" from callsign field
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if (Tcall.charAt(i) != ' ') {
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outString += Tcall.charAt(i);
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#ifndef TX_BASE91
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for (i=0; i<Tcall.length();++i){ // remove unneeded "spaces" from callsign field
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if (Tcall.charAt(i) != ' ') {
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outString += Tcall.charAt(i);
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}
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}
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}
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// outString = (Tcall);
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outString += ">APRS:!";
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if(Tlat<10) {outString += "0"; }
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outString += String(Lat,2);
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outString += Ns;
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outString += sTable;
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if(Tlon<100) {outString += "0"; }
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if(Tlon<10) {outString += "0"; }
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outString += String(Lon,2);
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outString += Ew;
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outString += TxSymbol;
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if(Tcourse<100) {outString += "0"; }
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if(Tcourse<10) {outString += "0"; }
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Coursex = String(Tcourse,0);
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Coursex.replace(" ","");
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outString += Coursex;
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outString += "/";
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if(Tspeed<100) {outString += "0"; }
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if(Tspeed<10) {outString += "0"; }
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Speedx = String(Tspeed,0);
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Speedx.replace(" ","");
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outString += Speedx;
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outString += "/A=";
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outString += Altx;
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outString += " Batt=";
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outString += String(BattVolts,2);
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outString += ("V");
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#ifdef DEBUG
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outString += (" Debug: ");
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outString += TxRoot;
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#endif
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// outString = (Tcall);
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outString += ">APRS:!";
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if(Tlat<10) {outString += "0"; }
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outString += String(Lat,2);
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outString += Ns;
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outString += sTable;
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if(Tlon<100) {outString += "0"; }
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if(Tlon<10) {outString += "0"; }
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outString += String(Lon,2);
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outString += Ew;
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outString += TxSymbol;
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if(Tcourse<100) {outString += "0"; }
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if(Tcourse<10) {outString += "0"; }
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Coursex = String(Tcourse,0);
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Coursex.replace(" ","");
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outString += Coursex;
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outString += "/";
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if(Tspeed<100) {outString += "0"; }
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if(Tspeed<10) {outString += "0"; }
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Speedx = String(Tspeed,0);
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Speedx.replace(" ","");
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outString += Speedx;
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outString += "/A=";
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outString += Altx;
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outString += " Batt=";
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outString += String(BattVolts,2);
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outString += ("V");
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#ifdef DEBUG
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outString += (" Debug: ");
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outString += TxRoot;
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#endif
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#else
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for (i=0; i<Tcall.length();++i){ // remove unneeded "spaces" from callsign field
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if (Tcall.charAt(i) != ' ') {
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outString += Tcall.charAt(i);
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}
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}
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// outString = (Tcall);
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outString += ">APRS:!/";
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aprs_lat = 900000000 - Tlat * 10000000;
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aprs_lat = aprs_lat / 26 - aprs_lat / 2710 + aprs_lat / 15384615;
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aprs_lon = 900000000 + Tlon * 10000000 / 2;
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aprs_lon = aprs_lon / 26 - aprs_lon / 2710 + aprs_lon / 15384615;
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ax25_base91enc(helper_base91, 4, aprs_lat);
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for (i=0; i<4; i++) {
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outString += helper_base91[i];
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}
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ax25_base91enc(helper_base91, 4, aprs_lon);
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for (i=0; i<4; i++) {
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outString += helper_base91[i];
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}
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outString += TxSymbol;
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ax25_base91enc(helper_base91, 1, (uint32_t) Tcourse/4 );
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outString += helper_base91[0];
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ax25_base91enc(helper_base91, 1, (uint32_t) (log1p(Tspeed)/0.07696));
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outString += helper_base91[0];
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outString += "\x48";
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#endif
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Serial.print("outString=");
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// Speedx = String(Tspeed,0);
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// Speedx.replace(" ","");
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Serial.println(outString);
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// Serial.println("=");
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break;
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break;
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}
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}
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@ -10,6 +10,12 @@
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//
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// licensed under CC BY-NC-SA
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//
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// version: V1.3
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// last update: 27.08.2020
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// change history
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// symbol RV added
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// compressed packets in tracker mode (base91)
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//
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// version: V1.1beta
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// last update: 22.11.2019
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//
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@ -26,6 +32,7 @@
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// SET HW version
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#define T_BEAM_V1_0 // use this for newer Boards AKA Rev1 (second board release)
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// #define T_BEAM_V0_7 // use this for older Boards AKA Rev0.x (first board release)
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#define TX_BASE91 // if BASE91 is set, packets will be sent compressed (in TRACKER-mode only)
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// SET temperature sensor type
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// #define DS18B20 // use this if you use DS18B20, default ist DHT22
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@ -33,12 +40,12 @@
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// USER DATA - USE THESE LINES TO MODIFY YOUR PREFERENCES
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// IF NOT CHANGED you have to go through the configuration routine at first boot up of the TTGO T-Beam
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#define DONT_USE_FLASH_MEMORY // uncomment if you don't want to use Flashmemory - instead data below must be corrected
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#define CALLSIGN "OE3CJB-14" // enter your callsign here - less then 6 letter callsigns please add "spaces" so total length is 6 (without SSID)
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#define WX_CALLSIGN "OE3CJB-14" // use same callsign but you can use different SSID
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// #define DONT_USE_FLASH_MEMORY // uncomment if you don't want to use Flashmemory - instead data below must be corrected
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#define CALLSIGN "OE1XYZ-11" // enter your callsign here - less then 6 letter callsigns please add "spaces" so total length is 6 (without SSID)
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#define WX_CALLSIGN "OE1XYZ-11" // use same callsign but you can use different SSID
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#define LONGITUDE_PRESET "01539.85E" // please in APRS notation DDDMM.mmE or DDDMM.mmW
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#define LATIDUDE_PRESET "4813.62N" // please in APRS notation DDMM.mmN or DDMM.mmS
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#define APRS_SYMBOL "R" // other symbols are
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#define APRS_SYMBOL ">" // other symbols are
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// "_" => Weather Station
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// ">" => CAR
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// "[" => RUNNER
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