Make LoRa CRC check configurable from settings

esp32_loraprs.ino

@@ -13,7 +13,7 @@ auto watchdogLedTimer = timer_create_default();
 void initializeConfig() {
   
   // client/server mode switch
-  cfg.IsClientMode = false;
+  cfg.IsClientMode = true;
 
   // lora parameters
   cfg.LoraFreq = 433.775E6;
@@ -22,6 +22,7 @@ void initializeConfig() {
   cfg.LoraCodingRate = 7;
   cfg.LoraSync = 0x34;
   cfg.LoraPower = 20;
+  cfg.LoraEnableCrc = true; // set to false for speech data
 
   // aprs configuration
   cfg.AprsHost = "rotate.aprs2.net";

loraprs_config.h

@@ -15,6 +15,7 @@ struct Config
   byte LoraCodingRate;  // lora coding rate, e.g. 7
   byte LoraSync;        // lora sync word/packet id, 0x3f
   byte LoraPower;       // lora power level in dbm, 20
+  bool LoraEnableCrc;   // lora crc check enabled
 
   int AprsPort;         // aprs server port, 14580
   String AprsHost;      // aprs server hostname, rotate.aprs2.net

loraprs_service.cpp

@@ -44,7 +44,8 @@ void Service::setup(const Config &conf)
   enableBeacon_ = conf.EnableBeacon;
 
   // peripherals
-  setupLora(conf.LoraFreq, conf.LoraBw, conf.LoraSf, conf.LoraCodingRate, conf.LoraPower, conf.LoraSync);
+  setupLora(conf.LoraFreq, conf.LoraBw, conf.LoraSf, 
+    conf.LoraCodingRate, conf.LoraPower, conf.LoraSync, conf.LoraEnableCrc);
     
   if (needsWifi()) {
     setupWifi(conf.WifiSsid, conf.WifiKey);
@@ -104,7 +105,7 @@ bool Service::reconnectAprsis()
   return true;
 }
 
-void Service::setupLora(int loraFreq, int bw, byte sf, byte cr, byte pwr, byte sync)
+void Service::setupLora(int loraFreq, int bw, byte sf, byte cr, byte pwr, byte sync, bool enableCrc)
 {
   Serial.print("LoRa init...");
   
@@ -119,7 +120,9 @@ void Service::setupLora(int loraFreq, int bw, byte sf, byte cr, byte pwr, byte s
   LoRa.setSignalBandwidth(bw);
   LoRa.setCodingRate4(cr);
   LoRa.setTxPower(pwr);
-  LoRa.enableCrc();
+  if (enableCrc) {
+    LoRa.enableCrc();
+  }
   
   Serial.println("ok");  
 }

loraprs_service.h

@@ -22,7 +22,7 @@ public:
 
 private:
   void setupWifi(const String &wifiName, const String &wifiKey);
-  void setupLora(int loraFreq, int bw, byte sf, byte cr, byte pwr, byte sync);
+  void setupLora(int loraFreq, int bw, byte sf, byte cr, byte pwr, byte sync, bool enableCrc);
   void setupBt(const String &btName);
 
   void reconnectWifi();