cometblue test1

root@mm_pi0w:~# cometblue discover
Comet Blue (b4:c9:4c:84:97:de)
root@mm_pi0w:~# cometblue device b4:c9:4c:84:97:de get device_name
Handle for uuid "00002a00-0000-1000-8000-00805f9b34fb" not found, perhaps sync issue?
root@mm_pi0w:~# cometblue device b4:c9:4c:84:97:de get firmware_revision
0.0.9.silvercrest
root@mm_pi0w:~# cometblue device b4:c9:4c:84:97:de get manufacturer_name
Eurotronic GmbH
root@mm_pi0w:~# cometblue device b4:c9:4c:84:97:de get model_number
Comet Blue
root@mm_pi0w:~# cometblue device b4:c9:4c:84:97:de get software_revision
0.0.9.silvercrest
root@mm_pi0w:~# cometblue device -p 0 b4:c9:4c:84:97:de get battery
Traceback (most recent call last):
  File "/usr/local/bin/cometblue", line 10, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.5/dist-packages/cometblue/cli.py", line 781, in main
    return cli_main(sys.argv[1:])
  File "/usr/local/lib/python3.5/dist-packages/cometblue/cli.py", line 772, in cli_main
    rv = _main(obj=context, args=argv)
  File "/usr/local/lib/python3.5/dist-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.5/dist-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.5/dist-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.5/dist-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.5/dist-packages/click/core.py", line 1092, in invoke
    rv.append(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.5/dist-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.5/dist-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.5/dist-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/usr/local/lib/python3.5/dist-packages/cometblue/cli.py", line 708, in real_get_fn
    value = getattr(device, get_fn_name)()
  File "/usr/local/lib/python3.5/dist-packages/cometblue/device.py", line 443, in _read_value
    if len(value.signature) != 1:
AttributeError: 'NoneType' object has no attribute 'signature'