text: #!/usr/bin/python
  
  # This file is part of the MAVLink Router project
  #
  # Copyright (C) 2016  Intel Corporation. All rights reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  from __future__ import print_function
  
  import pymavlink.mavutil as mavutil
  import sys
  
  mav = mavutil.mavlink_connection('tcp:' + sys.argv[1])
  mav.wait_heartbeat()
  
  while True:
      m = mav.recv_match(type='HEARTBEAT', blocking=True)
      if m is not None:
          print('%3d %3d ' % (m.get_srcSystem(),m.get_srcComponent()), m)
  