The controller has send us a message.

        :param uid: Unique id of the controller
        :param text: Text to display
        :type uid: str
        :type text: str

def _got_message(self, uid, text):
        """
        The controller has send us a message.

        :param uid: Unique id of the controller
        :param text: Text to display
        :type uid: str
        :type text: str
        """
        #TODO: use try
        e = Event(uid, E_MESSAGE, text)
        self.queue.put_nowait(e)

        self.controllers[uid][2] = time.time()