add version method

Author: toddtreece

src/AdafruitIO.cpp

@@ -209,6 +209,12 @@ const char* AdafruitIO::boardType()
   return AdafruitIO_Board::type();
 }
 
+char* AdafruitIO::version()
+{
+  sprintf(_version, "%d.%d.%d", ADAFRUITIO_VERSION_MAJOR, ADAFRUITIO_VERSION_MINOR, ADAFRUITIO_VERSION_PATCH);
+  return _version;
+}
+
 aio_status_t AdafruitIO::mqttStatus()
 {
   // if the connection failed,

src/AdafruitIO.h

@@ -57,6 +57,7 @@ class AdafruitIO {
 
     char* boardID();
     const char* boardType();
+    char* version();
     virtual const char* connectionType() = 0;
 
   protected:
@@ -67,6 +68,8 @@ class AdafruitIO {
     Adafruit_MQTT *_mqtt;
     HttpClient *_http;
 
+    char _version[10];
+
     const char *_host = "io.adafruit.com";
     uint16_t _mqtt_port = 8883;
     uint16_t _http_port = 443;