'Bad byte' error

[A Former User]

the new config looks like this

mysensors:
  gateways:
    - port: '/dev/ttyUSB0'
      baud_rate: 38400
  debug: true
  persistence: true
  version: '1.5'
  optimistic: true

[martinhjelmare]

Which arduino model are you using for the gateway?

[A Former User]

Its a nano.

[martinhjelmare]

Did you change baudrate in MyConfig.h to 38400? Otherwise I think we've found the problem.

Nano can use the default 115200 baudrate in MyConfig.h. The baudrate in HA config has to match. You can remove that line and hass will default to 115200.

[A Former User]

no i haven't, so i have just removed the line, and restarted HA.
But no luck. im still getting this.

Traceback (most recent call last):
  File "/usr/local/lib/python3.4/dist-packages/homeassistant/bootstrap.py", line 105, in _setup_component
    if not component.setup(hass, config):
  File "/usr/local/lib/python3.4/dist-packages/homeassistant/components/mysensors.py", line 111, in setup
    port, persistence, persistence_file, version, baud_rate)
  File "/usr/local/lib/python3.4/dist-packages/homeassistant/components/mysensors.py", line 75, in setup_gateway
    baud=baud_rate)
  File "/var/opt/homeassistant/lib/mysensors/mysensors.py", line 277, in __init__
    persistence_file, protocol_version)
  File "/var/opt/homeassistant/lib/mysensors/mysensors.py", line 32, in __init__
    self._load_sensors()
  File "/var/opt/homeassistant/lib/mysensors/mysensors.py", line 162, in _load_sensors
    self._perform_file_action(self.persistence_file, 'load')
  File "/var/opt/homeassistant/lib/mysensors/mysensors.py", line 177, in _perform_file_action
    func(filename)
  File "/var/opt/homeassistant/lib/mysensors/mysensors.py", line 133, in _load_pickle
    self.sensors = pickle.load(file_handle)
EOFError: Ran out of input

[A Former User]

okay putting

persistence_file: 'mysensors.json'

Will get the gateway started. but will result in a file not found. if i put the correct path in like

persistence_file: '/var/opt/homeassistant/mysensors.json'

i get this in the log.

16-03-13 02:11:26 homeassistant.bootstrap: Error during setup of component mysensors
Traceback (most recent call last):
  File "/usr/local/lib/python3.4/dist-packages/homeassistant/bootstrap.py", line 105, in _setup_component
    if not component.setup(hass, config):
  File "/usr/local/lib/python3.4/dist-packages/homeassistant/components/mysensors.py", line 111, in setup
    port, persistence, persistence_file, version, baud_rate)
  File "/usr/local/lib/python3.4/dist-packages/homeassistant/components/mysensors.py", line 75, in setup_gateway
    baud=baud_rate)
  File "/var/opt/homeassistant/lib/mysensors/mysensors.py", line 277, in __init__
    persistence_file, protocol_version)
  File "/var/opt/homeassistant/lib/mysensors/mysensors.py", line 32, in __init__
    self._load_sensors()
  File "/var/opt/homeassistant/lib/mysensors/mysensors.py", line 162, in _load_sensors
    self._perform_file_action(self.persistence_file, 'load')
  File "/var/opt/homeassistant/lib/mysensors/mysensors.py", line 177, in _perform_file_action
    func(filename)
  File "/var/opt/homeassistant/lib/mysensors/mysensors.py", line 145, in _load_json
    self.sensors = json.load(file_handle, cls=MySensorsJSONDecoder)
  File "/usr/lib/python3.4/json/__init__.py", line 268, in load
    parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
  File "/usr/lib/python3.4/json/__init__.py", line 331, in loads
    return cls(**kw).decode(s)
  File "/usr/lib/python3.4/json/decoder.py", line 343, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python3.4/json/decoder.py", line 361, in raw_decode
    raise ValueError(errmsg("Expecting value", s, err.value)) from None
ValueError: Expecting value: line 1 column 1 (char 0)

[martinhjelmare]

If you check the content of

/var/opt/homeassistant

What does it show?

[A Former User]

That's where all my configuration is. And there is a mysensors.json file present.

[martinhjelmare]

Try deleting the json file and have the full path to the json file in the config, as before. Restart hass.

Edit: Also delete any pickle files, if any.

[A Former User]

full path and no file, gets me

File does not exist or is not readable: /var/opt/homeassistant/mysensors.json

but will get me a gateway started.

[martinhjelmare]

That's fine, I think. If you check the contents of the folder again, you should see a json file again. It creates the file the first time.

[A Former User]

nope no file

[martinhjelmare]

Oh yeah, I think it will create it when the first sensor is added.

Do you get the gateway started message now?

[A Former User]

Yes i have the gateway started, so i should try to start a sensor to see if it will make the json. and be present in the webgui

[martinhjelmare]

Yes. Make sure you follow the presentation guide in the docs for mysensors on the HA web.

[A Former User]

thank you so much, that seem to do the trick. the gate way was started and the sensor was add, as soon as it was turned on.

[martinhjelmare]

:thumbsup:

I'll think about updating the docs at HA web, to explain things a bit more.

[A Former User]

Maybe also put in about the pyserial?

[martinhjelmare]

Well pyserial should be installed automatically when you run hass the first time with mysensors activated in the config. There shouldn't be a need to do that on your own.

Are you sure it wasn't installed for you?