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TTGO-T-Beam-LoRa-APRS
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MANUAL TX & FIXED POS 

added the ability to manually send the package, and the default coordinates when the GPS is off or there is no FIX
pull/11/head
Rysiek Labus 1 year ago
parent
a39ad747ea
commit
a74cfb7545
2 changed files with 58 additions and 40 deletions
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  1. 88
      src/TTGO_T-Beam_LoRa_APRS.ino
  2. 10
      src/TTGO_T-Beam_LoRa_APRS_config.h

88
src/TTGO_T-Beam_LoRa_APRS.ino
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@ -41,8 +41,8 @@ String Textzeile1, Textzeile2;
#ifdef KISS_PROTOCOLL
String inTNCData = "";
#endif
int button=0;
int button_ctr=0;
//int button=0;
//int button_ctr=0;
// Pins for GPS
#ifdef T_BEAM_V1_0
@ -77,6 +77,7 @@ String Tcall; //your Call Sign for normal position reports
String sTable="/"; //Primer
String relay_path;
boolean gps_state = true;
boolean key_up = true;
// Variables and Constants
String loraReceivedFrameString = ""; //data on buff is copied to this string
@ -190,10 +191,10 @@ void recalcGPS(){
if(Tlat < 0) { Tlat= -Tlat; }
if(Tlon < 0) { Tlon= -Tlon; }
aprs_lat = 900000000 - Tlat * 10000000;
aprs_lat = aprs_lat / 26 - aprs_lat / 2710 + aprs_lat / 15384615;
aprs_lon = 900000000 + Tlon * 10000000 / 2;
aprs_lon = aprs_lon / 26 - aprs_lon / 2710 + aprs_lon / 15384615;
aprs_lat = 900000000 - Tlat * 10000000;
aprs_lat = aprs_lat / 26 - aprs_lat / 2710 + aprs_lat / 15384615;
aprs_lon = 900000000 + Tlon * 10000000 / 2;
aprs_lon = aprs_lon / 26 - aprs_lon / 2710 + aprs_lon / 15384615;
//}
outString = "";
@ -208,22 +209,29 @@ void recalcGPS(){
#elif
outString += ">APLM0:!";
#endif
outString += APRS_SYMBOL_TABLE;
ax25_base91enc(helper_base91, 4, aprs_lat);
for (i=0; i<4; i++) {
outString += helper_base91[i];
}
ax25_base91enc(helper_base91, 4, aprs_lon);
for (i=0; i<4; i++) {
outString += helper_base91[i];
if(gps_state==true && gps.location.isValid()){
outString += APRS_SYMBOL_TABLE;
ax25_base91enc(helper_base91, 4, aprs_lat);
for (i=0; i<4; i++) {
outString += helper_base91[i];
}
ax25_base91enc(helper_base91, 4, aprs_lon);
for (i=0; i<4; i++) {
outString += helper_base91[i];
}
outString += APRS_SYMBOL;
ax25_base91enc(helper_base91, 1, (uint32_t) Tcourse/4 );
outString += helper_base91[0];
ax25_base91enc(helper_base91, 1, (uint32_t) (log1p(Tspeed)/0.07696));
outString += helper_base91[0];
outString += "\x48";
}else{
outString += LATIDUDE_PRESET;
outString += APRS_SYMBOL_TABLE;
outString += LONGITUDE_PRESET;
outString += APRS_SYMBOL;
}
outString += APRS_SYMBOL;
ax25_base91enc(helper_base91, 1, (uint32_t) Tcourse/4 );
outString += helper_base91[0];
ax25_base91enc(helper_base91, 1, (uint32_t) (log1p(Tspeed)/0.07696));
outString += helper_base91[0];
outString += "\x48";
#ifdef SHOW_ALT
outString += "/A=";
@ -256,20 +264,12 @@ void sendpacket(){
batt_read();
Outputstring = "";
if ( gps.location.isValid() || gps.location.isUpdated() ) {
//if ( gps.location.isValid() || gps.location.isUpdated() ) {
recalcGPS(); //
Outputstring =outString;
message = Outputstring;
loraSend(lora_TXStart, lora_TXEnd, 60, 255, 1, 10, TXdbmW, TXFREQ, message); //send the packet, data is in TXbuff from lora_TXStart to lora_TXEnd
} else {
Outputstring = (Tcall);
Outputstring += " No GPS-Fix";
Outputstring += " Batt=";
Outputstring += String(BattVolts,2);
Outputstring += ("V ");
message = Outputstring;
loraSend(lora_TXStart, lora_TXEnd, 60, 255, 1, 10, 5, TXFREQ, message); //send the packet, data is in TXbuff from lora_TXStart to lora_TXEnd
}
//}
}
void loraSend(byte lora_LTXStart, byte lora_LTXEnd, byte lora_LTXPacketType, byte lora_LTXDestination, byte lora_LTXSource, long lora_LTXTimeout, byte lora_LTXPower, float lora_FREQ, const String& message){
@ -367,7 +367,6 @@ String getSatAndBatInfo() {
void displayInvalidGPS() {
writedisplaytext(" " + Tcall, "(TX) at valid GPS", "LAT: not valid", "LON: not valid", "SPD: --- CRS: ---", getSatAndBatInfo(), 1);
//writedisplaytext(" " + Tcall, "(TX) at valid GPS", "LAT: not valid", "LON: not valid", "SPD: --- CRS: ---", "", 1);
#ifdef SHOW_GPS_DATA
Serial.print("(TX) at valid GPS / LAT: not valid / Lon: not valid / SPD: --- / CRS: ---");
Serial.print(" / SAT: ");
@ -460,8 +459,22 @@ void setup(){
// +---------------------------------------------------------------------+//
void loop() {
if(digitalRead(BUTTON)==LOW){
delay(2000);
if(digitalRead(BUTTON)==LOW && key_up == true){
key_up = false;
delay(100);
if(digitalRead(BUTTON)==LOW){
delay(300);
if(digitalRead(BUTTON)==HIGH){
if(gps_state == true && gps.location.isValid()){
writedisplaytext("((MAN TX))","","","","","",1);
sendpacket();
}else{
writedisplaytext("((FIX TX))","","","","","",1);
sendpacket();
}
}
}
delay(1500);
if(digitalRead(BUTTON)==LOW){
if(gps_state == true){
gps_state = false;
@ -475,6 +488,9 @@ void loop() {
}
}
}
if(digitalRead(BUTTON)==HIGH && key_up == false){
key_up = true;
}
while (gpsSerial.available() > 0) {
gps.encode(gpsSerial.read());
@ -568,9 +584,9 @@ void loop() {
old_course = new_course;
}
if (button_ctr==2) {
nextTX = 0;
}
//if (button_ctr==2) {
// nextTX = 0;
//}
if ((millis()<max_time_to_nextTX)&&(lastTX == 0)) {
nextTX = 0;

10
src/TTGO_T-Beam_LoRa_APRS_config.h
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@ -9,20 +9,22 @@
#define KISS_PROTOCOLL // If enabled send and receive data in SIMPLE KISS format to serial port
#define CALLSIGN "SQ9MDD-11" // enter your callsign here - less then 6 letter callsigns please add "spaces" so total length is 6 (without SSID)
#define DIGI_PATH "WIDE1-1" // one hope please (WIDE1-1)
#define LATIDUDE_PRESET "5215.03N" // please in APRS notation: DDMM.mmN or DDMM.mmS
#define LONGITUDE_PRESET "02055.59E" // please in APRS notation: DDDMM.mmE or DDDMM.mmW
#define APRS_SYMBOL_TABLE "/"
#define APRS_SYMBOL "[" // other symbols are: "[" => RUNNER, "b" => BICYCLE, "<" => MOTORCYCLE, "R" => Recreation Vehicle
#define MY_COMMENT "LoRa tracker" // add your coment here - if empty then no comment is sent
//#define SHOW_ALT // send Altitude in frame
#define SHOW_BATT // send battery voltage at the end of comment (we need beggining for QSY message format)
#define SHOW_RX_PACKET // uncomment to show received LoRa APS packets for the time given below
#define SHOW_RX_TIME 30000 // show RX packet for milliseconds (5000 = 5secs)
#define SHOW_RX_TIME 10000 // show RX packet for milliseconds (5000 = 5secs)
#define TXFREQ 433.775 // Transmit frequency in MHz
#define TXdbmW 20 // Transmit power in dBm 17-50mW, 18-63mW, 19-80mW, 20-100mW
//#define SHOW_GPS_DATA // uncomment to show on serial port, received data from GPS and debug information
#define ENABLE_BLUETOOTH
#define BLUETOOTH_PIN "0000"
#define ENABLE_BLUETOOTH // bluetooth KISS interface enable
//#define BLUETOOTH_PIN "0000"
//#define KISS_DEBUG
//#define LOCAL_KISS_ECHO // echoing KISS frame back
//#define LOCAL_KISS_ECHO // echoing KISS frame back
#define T_BEAM_V1_0 // if enabled t-beam v1.0 disabled t-beam V.0.7
unsigned long max_time_to_nextTX = 360000L; // TRANSMIT INTERVAL set here MAXIMUM time in ms(!) for smart beaconing - minimum time is always 1 min = 60 secs = 60000L !!!
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