small cleanups

src/lorawan.cpp

@@ -582,6 +582,7 @@ const char *getCrName(rps_t rps) {
 
 #if (VERBOSE)
 // decode LORAWAN MAC message
+// see https://github.com/mcci-catena/arduino-lmic/blob/master/doc/LoRaWAN-at-a-glance.pdf
 void mac_decode(const uint8_t cmd[], const uint8_t cmdlen, bool is_down) {
 
   if (!cmdlen)

src/mqttclient.cpp

@@ -16,8 +16,8 @@ esp_err_t mqtt_init(void) {
   // setup network connection
   WiFi.onEvent(NetworkEvent);
   ETH.begin();
-  // WiFi.mode(WIFI_STA);
-  // WiFi.begin("SSID", "PW");
+  //WiFi.mode(WIFI_STA);
+  //WiFi.begin("SSID", "PASSWORD");
 
   // setup mqtt client
   mqttClient.begin(MQTT_SERVER, MQTT_PORT, netClient);