💬 Building a Raspberry Pi Gateway

[gohan]

Or meanwhile just use the ethernet gw

[mirodin]

Well... I think I fixed it, let's hear it for documentation. Just when I had MQTT setup half way I got struck by the idea that there was some group flag for configure. And indeed there is, setting --my-serial-groupname=nodered did the trick making /dev/pts/X owned by group nodered and let Node-RED connect to it, writing and reading works just fine now.

Thanks @gohan for your input I think I would have gone the ethernet route in the end if this last test had failed.

[Inso]

I am currently trying to update to 2.3
Have stopped service and deleted the file (systemctl status mysgw -> Unit mysgw.service could not be found.)
Also renamed the config file /etc/mysensors.dat
Renamed the old folder, then copied new files.
Checked readme.md in MySensors-folder: MySensors Library v2.3.0
Then I configured the radio and -> make, no errors
However, changing to bin folder and executing mysgw shows: Protocol 2.2.0
What am I missing?

[mirodin]

@inso Did you sudo make install after building it? This command copies the service file and mysgw to their respective locations.

[gohan]

@inso remember to unregister the service and then make a new make install of the new gw

[mfalkvidd]

@gohan how is the unregistration done? I didn’t know that was needed. We should probably add upgrade instructions to the build page.

[Inso]

@mirodin
make install before testing did the trick, now it is 2.3.0 . :smiley:
Was just going step by step through tutorial, there it´s make -> test -> make install. Didn´t realized it would use old parts if it´s not first install :relaxed:

@gohan
thought stop, disable and remove the service would be enough to ensure the service is completely "uninstalled" - could you give me a hint what I´ve missed? :sweat_smile:

[ricorico94]

Hi,
I try to access log info from my gateway installed on my domoticz raspberry pi, but I get no success..
First, I can't find the mysensors.conf file : nothing in the /etc folder. I tried to use "find / -name 'mysensors.conf' 2>/dev/null" command, but it finds nothing.
I tried creating such a file (then it's found by the fond command above) and in which I have the lines

log_pipe=0
log_pipe_file=/tmp/mysgw.pipe

as instructed above.
I restarted the wole Raspberry PI, then tried the command cat /tmp/mysgw.pipe but error message:

cat: /tmp/mysgw.pipe: Aucun fichier ou dossier de ce type

(= no file or folder like that)
I then tried this: sudo mysgw -c /etc/mysensors.conf and I got also error message:

mysgw: invalid option -- 'c'

I installed the Mysensor gateway on 17th October 2017 and my raspberry pi is working on Wheezy. In Domoticz, I see the Mysensor gateway has version 2.1.1.
MY gateway seems working fine, communicating properly with sensors (both ways). I'm trying to find log because I face an issue with a new sensor which works properly when powered with external FTDI 3.3V and only 1 way (sensor to gateway only) when powered on battery (I raised question in another post, where I was suggested to check log fil on gtw side..)

Any idea of what I should do (except "reinstall whole raspberry pi with latest OS..) ?
Thanks a lot,
Ricorico

[mfalkvidd]

@ricorico94 there seems to have been some major changes in the raspberry pi gateway, without vorresponding updates to the documentation.

I have not been able to locate the exact changes though. @marceloaqno might know.

[mfalkvidd]

Found the reference: https://github.com/mysensors/MySensors/pull/1061

[ricorico94]

@mfalkvidd : thanks a lot ! I had searched for such version history and couldn't find it.
Indeed it seems introduction of the switches for log files was introduced in February, so I should probably update my install.

Precisely, talking about upgrade process: I read in previous posts that we should uninstall/unregister the install/service. WHat would be commands to do so ? Should it be:

sudo systemctl disable mysgw.service

and executed before anything else ? So upgrade process would be:

sudo systemctl disable mysgw.service
make
sudo make install
sudo systemctl enable mysgw.service

(and maybe test the gateway before the "systemctl enable..")
Is there anyfile to remove manually ? or any other command to apply before or after ?

[alowhum]

Would someone be willing to create a post that lists each step required to set up the simple encryption+signing option? I understand I have to add a password line to the arduino sketch. But how exactly one sets up the server side is still a bit of a mystery to me. It would rock if there was a similar simple command to give during the make process.

[Anticimex]

@alowhum https://www.mysensors.org/apidocs/group__RaspberryPiGateway.html
That is straight from the documentation. Which in the case of Linux ports is also what you get if you issue ./configure --help
I believe.

[pepson]

@alowhum
I also need this info...

[marceloaqno]

@ricorico94 to update your install run:

sudo make install
sudo systemctl restart mysgw.service

[ricorico94]

Thank you for the clarification !

[alowhum]

@anticimex said in 💬 Building a Raspberry Pi Gateway:

https://www.mysensors.org/apidocs/group__RaspberryPiGateway.html

@Anticimex Thanks, but a documentation page (which I have checked before) is not the same as an easy to use guide for beginners.

In my ideal world it would be this:

1. Add the MY_SIMPLE_PASSWORD line to your Arduino sketch.
2. Compile the gateway with --MY_SIMPLE_PASSWORD="yabadabad000!"
3. Done

[Anticimex]

@alowhum it is not easy to have simple guides tailored for specific usecases when there are so many options.
Those tend to not follow implementation and our documentation is made to live with the implementation to ensure it is always up to date. Maintaining a simple guide for every conceivable use case is simply not feasible. The signing and security documentation does have a step by step guide for setting up security.

[alowhum]

@Anticimex: I understand, but:

• Currently even the outline of the steps eludes me. Seeing the steps for usecase #14 or #385 would already help me understand the scope, and to see what ballpark of difficulty it's in. It's easier to mod a guide when there is something to go on.
• Secondly, there must be a common use case? The defaults that MySensors uses already suggests a lot of these: a Raspberry Pi with the default settings of the software (ethernet), with the nRF24 radio.

[Anticimex]

@alowhum ok, well first of all, I don't have a rPi setup to test on, secondly I don't have time to look into that (this) environment.
But, this is a open source project so anyone is free to contribute with both code and documentation (which in our case lives in the same repositories) so if there are guides missing enyone is welcome to contribute with experiences and guides to help others out.
It is just important to understand that the guides need to be maintained in order to remain valid.
I don't mind guides at all. But it makes little sense for me to write guides for an environment which I am not familiar with nor can test on.