Mercedes Benz integration

Skynet86 · March 1, 2021, 4:33pm

Hello, can someone tell me how exactly do I start the script automatically? I have no experience with the exec addon.

spawny0815 · March 1, 2021, 4:41pm

Hey Hans,
you will find a rules file in my data. In this file there is already an exec command rule as an example.
To make it work you have to install the exec binding and put the executable command in the exec.whitlist file (misc folder).

so for my example the whole thing looks like this:

openhabconf/misc/exec.whitelist

/usr/bin/python3 /etc/openhab/scripts/mb-connect/mb-connect.py --data

hope this helps

Chris

Skynet86 · March 1, 2021, 4:44pm

Ok, and do I have to configure something in the Exec Addon? Or just add to the whitelist?

Skynet86 · March 1, 2021, 4:47pm

This is the Log after putting

/usr/bin/python3 /etc/openhab/scripts/mb-connect/mb-connect.py --data
 in the Whitelist


2021-03-01 17:45:29.482 [WARN ] [ng.exec.internal.handler.ExecHandler] - Tried to execute 'Duration.ofSeconds(45),"/usr/bin/python3", "/etc/openhab/scripts/mb-connect/mb-connect.py", "--data"', but it is not contained in whitelist.

spawny0815 · March 1, 2021, 4:53pm

Are you sure you created the whitlist file correctly?
Correct folder, correct content?

Maybe the exec binding or openHAB has to be restarted once.

Skynet86 · March 1, 2021, 5:17pm

It doesn’t work for me, I restarted openHAB. the exec.whitelist in the path etc/openhab/misc has the following content … /usr/bin/python3 /etc/openhab/scripts/mb-connect/mb-connect.py --data

the enclosed rule starts, but does not update the items. if I enter manually python3 etc/openhab/scripts/mb-connect/mb-connect.py --data via putty, everything works.

Mads_Bloch · March 1, 2021, 6:30pm

Hi Skynet… I guess that you only have openhab2 ??
The syntax used in rule file is for openhab3 ??

Skynet86 · March 1, 2021, 7:13pm

No, i use openHAB 3

spawny0815 · March 1, 2021, 7:26pm

mabye there is a problem with the file permission?
try tu run the mb-connect.py with the same user as openhab in the putty terminal and check the result.

Skynet86 · March 1, 2021, 8:35pm

Yes this works without problems…

spawny0815 · March 2, 2021, 9:42am

Since my script works for you, the problem seems to be more with the configuration of the Exec binding.
If you still have the error message with the whitlist,

you should look for the error at this point.
Maybe read again the description of exec binding, which I have already listed.

Oggerschummer · March 2, 2021, 10:23am

Edit the whitelist-file:

nano /etc/openhab/misc/exec.whitelist

Add this line:

python /etc/openhab/scripts/mb-connect/mb-connect.py --data

Restart OH

This should solve the error (except you put the script somewhere else or reference python directly.

Skynet86 · March 2, 2021, 10:13pm

No i give it up The automatic execution does not work on my system. I have now tried for several days to have the script run automatically. Manually it works without problems just so it is of no use to me. Thanks for the answers…

vfebert · March 4, 2021, 6:37am

Hi Chris,
absolutely great to hear that you managed connecting to your MB. Here is another idea what to do with it:
display your daily CO2 footprint fully automated. it just needs to know the fuel level in your tank and the mileage. As my Mercedes is a bit too old for online connection, I had to use a OBD II and an ESP - not needed with your solution. Hope some others will pick up your and my idea and get a good feeling of their personal CO2 footprint

spawny0815 · March 8, 2021, 5:26pm

Hey, @vfebert
glad you like it.

This is a really good idea and is definitely on my list.

spawny0815 · March 8, 2021, 5:29pm

Hey @Skynet86 ,
Have you ever checked your linux file permissions?

Maybe that’s where it comes from. Make sure that the mb-connect.py file is executable by the user running openhab.

tkropf · April 10, 2021, 12:32pm

Hi @spawny0815 ,
first thanks for all the good work.
I followed your instructions. However, when trying to run the script

pip3 install -r requirements.txt

I get the error

Invalid requirement: '<!DOCTYPE html>'
Traceback (most recent call last):
  File "/usr/share/python-wheels/packaging-19.0-py2.py3-none-any.whl/packaging/requirements.py", line 93, in __init__
    req = REQUIREMENT.parseString(requirement_string)
  File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 1632, in parseString
    raise exc
  File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 1622, in parseString
    loc, tokens = self._parse( instring, 0 )
  File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 1379, in _parseNoCache
    loc,tokens = self.parseImpl( instring, preloc, doActions )
  File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 3395, in parseImpl
    loc, exprtokens = e._parse( instring, loc, doActions )
  File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 1379, in _parseNoCache
    loc,tokens = self.parseImpl( instring, preloc, doActions )
  File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 3717, in parseImpl
    return self.expr._parse( instring, loc, doActions, callPreParse=False )
  File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 1379, in _parseNoCache
    loc,tokens = self.parseImpl( instring, preloc, doActions )
  File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 3378, in parseImpl
    loc, resultlist = self.exprs[0]._parse( instring, loc, doActions, callPreParse=False )
  File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 1383, in _parseNoCache
    loc,tokens = self.parseImpl( instring, preloc, doActions )
  File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 2689, in parseImpl
    raise ParseException(instring, loc, self.errmsg, self)
pyparsing.ParseException: Expected W:(abcd...) (at char 0), (line:1, col:1)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/pip/_internal/req/constructors.py", line 253, in install_req_from_line
    req = Requirement(req)
  File "/usr/share/python-wheels/packaging-19.0-py2.py3-none-any.whl/packaging/requirements.py", line 97, in __init__
    requirement_string[e.loc : e.loc + 8], e.msg
pip._vendor.packaging.requirements.InvalidRequirement: Parse error at "'<!DOCTYP'": Expected W:(abcd...)

Any help?
Thanks, Thomas

muelli1967 · April 11, 2021, 10:39am

make sure you execute the script in the folder where the file is.

Example: cd /etc/openhab/scripts/mb-connect/ && pip3 install -r requirements.txt

tkropf · April 11, 2021, 1:57pm

Thanks for the quick help. This is what I did

openhabian@openhabian:~ $ cd /etc/openhab/scripts/mb-connect/ && pip3 install -r requirements.txt
Invalid requirement: '<!DOCTYPE html>'
Traceback (most recent call last):
  File "/usr/share/python-wheels/packaging-19.0-py2.py3-none-any.whl/packaging/requirements.py", line 93, in __init__
    req = REQUIREMENT.parseString(requirement_string)
...

muelli1967 · April 11, 2021, 2:11pm

are you sure you copied the files to that location? Also, can you try to get to the folder one step after the other just to make sure you are really in the folder… that is what i did.

cd etc
cd openhab
cd scripts
cd mb-connect

once you are in the folder mb-connect, run the command:

pip3 install -r requirements.txt