bluetooth support

src/TTGO_T-Beam_LoRa_APRS.ino

@@ -23,6 +23,10 @@
 #include <axp20x.h>
 #include <KISS_TO_TNC2.h>
 
+#ifdef ENABLE_BLUETOOTH
+#include "BluetoothSerial.h"
+#endif
+
 // I2C LINES
 #define I2C_SDA 21
 #define I2C_SCL 22
@@ -108,6 +112,8 @@ void setup_data(void);
 
 void displayInvalidGPS();
 
+void handleKISSData(char character);
+
 // SoftwareSerial ss(RXPin, TXPin);   // The serial connection to the GPS device
 HardwareSerial gpsSerial(1);        // TTGO has HW serial
 TinyGPSPlus gps;             // The TinyGPS++ object
@@ -124,6 +130,10 @@ BG_RF95 rf95(18, 26);        // TTGO T-Beam has NSS @ Pin 18 and Interrupt IO @
 #define OLED_RESET 4         // not used
 Adafruit_SSD1306 display(128, 64, &Wire, OLED_RESET);
 
+#ifdef ENABLE_BLUETOOTH
+BluetoothSerial SerialBT;
+#endif
+
 // + FUNCTIONS-----------------------------------------------------------+//
 
 // This custom version of delay() ensures that the gps object
@@ -226,7 +236,13 @@ void recalcGPS(){
   #endif
   #ifdef KISS_PROTOCOLL
     Serial.print(encode_kiss(outString));
-  #else
+    #ifdef ENABLE_BLUETOOTH
+    if (SerialBT.connected()){
+      SerialBT.print(encode_kiss(outString));
+    }
+    #endif
+
+#else
     Serial.println(outString);
   #endif
 }
@@ -356,6 +372,10 @@ void setup(){
   rf95.setModemConfig(BG_RF95::Bw125Cr45Sf4096); // hard coded because of double definition
   rf95.setTxPower(20);    // was 5
   delay(250);
+#ifdef ENABLE_BLUETOOTH
+  SerialBT.begin(String("TTGO LORA APRS ") + CALLSIGN);
+  writedisplaytext("LoRa-APRS","","Init:","BT OK!","","",250);
+#endif
   writedisplaytext("LoRa-APRS","","Init:","FINISHED OK!","   =:-)   ","",250);
   writedisplaytext("","","","","","",0);
 }
@@ -372,13 +392,17 @@ void loop() {
   #ifdef KISS_PROTOCOLL
     while (Serial.available() > 0 ){
       char character = Serial.read();
-      inTNCData.concat(character);
-        if (character == (char)FEND && inTNCData.length() > 3){
-          writedisplaytext("(KISSTX))","","","","","",1);
-          loraSend(lora_TXStart, lora_TXEnd, 60, 255, 1, 10, TXdbmW, TXFREQ, decode_kiss(inTNCData));
-          inTNCData = "";
-        }
+      handleKISSData(character);
     }
+    #ifdef ENABLE_BLUETOOTH
+      if (SerialBT.connected()) {
+        while (SerialBT.available() > 0 ){
+          char character = SerialBT.read();
+          handleKISSData(character);
+        }
+      }
+    #endif
+
   #endif
 
   if (rf95.waitAvailableTimeout(100)) {
@@ -489,6 +513,15 @@ void loop() {
   }
 }
 
+void handleKISSData(char character) {
+  inTNCData.concat(character);
+  if (character == (char)FEND && inTNCData.length() > 3){
+    writedisplaytext("(KISSTX))","","","","","",1);
+    loraSend(lora_TXStart, lora_TXEnd, 60, 255, 1, 10, TXdbmW, TXFREQ, decode_kiss(inTNCData));
+    inTNCData = "";
+  }
+}
+
 void displayInvalidGPS() {
   writedisplaytext(" " + Tcall, "(TX) at valid GPS", "LAT: not valid", "LON: not valid", "SPD: ---  CRS: ---", "SAT: " + String(gps.satellites.value()) + "  BAT: " + String(BattVolts, 1) + "V", 1);
 #ifdef SHOW_GPS_DATA

src/TTGO_T-Beam_LoRa_APRS_config.h

@@ -18,5 +18,6 @@
 #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
 
 unsigned long max_time_to_nextTX = 180000L;   // TRANSMIT INTERVAL set here MAXIMUM time in ms(!) for smart beaconing - minimum time is always 1 min = 60 secs = 60000L !!!