Adds an implementation example and base class.

Author: tcr3dr

Diff for: README.md

@@ -17,7 +17,11 @@ pip2 install dronekit-solo -UI
 ## API
 
 ```
-import dronekit_solo
+from dronekit import connect
+from dronekit_solo import SoloVehicle
+
+vehicle = connect('127.0.0.1:14550', vehicle_class=SoloVehicle)
+print vehicle.gopro_status
 ```
 
 ## License

Diff for: dronekit_solo/__init__.py

@@ -1,5 +1,40 @@
 #!/usr/bin/python
 
 from __future__ import print_function
+from dronekit import Vehicle
 
-print('todo')
+class SoloVehicle(Vehicle):
+    def __init__(self, *args):
+        super(SoloVehicle, self).__init__(*args)
+
+        self.__msg_gopro_status = None
+        self.__msg_gopro_get_response = None
+        self.__msg_gopro_set_response = None
+
+        self.on_message('GOPRO_HEARTBEAT', self.__on_gopro_status)
+        self.on_message('GOPRO_GET_RESPONSE', self.__on_gopro_get_response)
+        self.on_message('GOPRO_SET_RESPONSE', self.__on_gopro_set_response)
+
+    def __on_gopro_status(self, name, m):
+        self.__msg_gopro_status = m.status
+        self.notify_observers('gopro_status')
+
+    @property
+    def gopro_status(self):
+        return self.__msg_gopro_status
+
+    def __on_gopro_get_response(self, name, m):
+        self.__msg_gopro_get_response = (m.cmd_id, m.value)
+        self.notify_observers('gopro_get_response')
+
+    @property
+    def gopro_get_response(self):
+        return self.__msg_gopro_get_response
+
+    def __on_gopro_set_response(self, name, m):
+        self.__msg_gopro_set_response = (m.cmd_id, m.result)
+        self.notify_observers('gopro_set_response')
+
+    @property
+    def gopro_set_response(self):
+        return self.__msg_gopro_set_response