[RN2483] Add some example code for new RN2483 library

Since I have rewritten the entire library, I may also add some short example code to illustrate the new async features.

lib/RN2483-Arduino-Library/src/rn2xx3.cpp

@@ -27,6 +27,10 @@ void rn2xx3::setAsyncMode(bool enabled) {
   _rn2xx3_handler.setAsyncMode(enabled);
 }
 
+bool rn2xx3::getAsyncMode() const {
+  return _rn2xx3_handler.getAsyncMode();
+}
+
 bool rn2xx3::autobaud()
 {
   // FIXME TD-er: Must fix this, as it is not working well.
@@ -166,6 +170,11 @@ rn2xx3_handler::RN_state rn2xx3::wait_command_accepted(unsigned long timeout)
   return _rn2xx3_handler.wait_command_accepted(timeout);
 }
 
+bool rn2xx3::command_finished() const
+{
+  return _rn2xx3_handler.command_finished();
+}
+
 String rn2xx3::getRx() {
   return _rn2xx3_handler.get_rx_message();
 }

lib/RN2483-Arduino-Library/src/rn2xx3.h

@@ -40,6 +40,8 @@ public:
    */
   void   setAsyncMode(bool enabled);
 
+  bool   getAsyncMode() const;
+
   /*
    * Transmit the correct sequence to the rn2xx3 to trigger its autobauding feature.
    * After this operation the rn2xx3 should communicate at the same baud rate than us.
@@ -208,6 +210,8 @@ public:
 
   rn2xx3_handler::RN_state wait_command_accepted(unsigned long timeout = 10000);
 
+  bool command_finished() const;
+
   /*
    * Change the datarate at which the RN2xx3 transmits.
    * A value of between 0 and 5 can be specified,

lib/RN2483-Arduino-Library/src/rn2xx3_handler.cpp

@@ -456,6 +456,10 @@ void rn2xx3_handler::setAsyncMode(bool enabled) {
   _asyncMode = enabled;
 }
 
+bool rn2xx3_handler::getAsyncMode() const {
+  return _asyncMode;
+}
+
 bool rn2xx3_handler::useOTAA() const {
   return _otaa;
 }

lib/RN2483-Arduino-Library/src/rn2xx3_handler.h

@@ -52,13 +52,17 @@ public:
   // It will return when the state waiting for reply_received_rx2 has been reached, or the command has finished (due to error)
   RN_state wait_command_accepted(unsigned long timeout = 10000);
 
+  // Check whether a command has finished.
+  bool     command_finished() const;
+
+
   /*
    * Initialise the RN2xx3 and join the LoRa network (if applicable).
    * This function can only be called after calling initABP() or initOTAA().
    * The sole purpose of this function is to re-initialise the radio if it
    * is in an unknown state.
    */
-  bool     init();
+  bool init();
 
   /*
    * Initialise the RN2xx3 and join a network using personalization.
@@ -70,9 +74,9 @@ public:
    * NwkSKey: Network Session Key as a HEX string.
    *          Example "AE17E567AECC8787F749A62F5541D522"
    */
-  bool     initABP(const String& addr,
-                   const String& AppSKey,
-                   const String& NwkSKey);
+  bool initABP(const String& addr,
+               const String& AppSKey,
+               const String& NwkSKey);
 
   // TODO: initABP(uint8_t * addr, uint8_t * AppSKey, uint8_t * NwkSKey)
 
@@ -128,6 +132,8 @@ public:
 
   void setAsyncMode(bool enabled);
 
+  bool getAsyncMode() const;
+
   bool useOTAA() const;
 
   void setLastUsedJoinMode(bool isOTAA);
@@ -151,8 +157,6 @@ public:
 
 private:
 
-  bool          command_finished() const;
-
   // Return the data to send
   const String& get_send_data() const;