MMM-Hoymiles-Wifi

[schris88]

Hello, as I got into some PV lately I found no module to display the output of my solar panels, the new Hoymiles inverters with integrated wifi are not supported by OpenDTU or Ahoy because they no longer send via 2,4Ghz or Sub-1G.

This is a quick hacked solution for the issue, it uses the python library hoymiles-wifi to get the inverter data via protobuf from the connected inverter in your home network, then it renders 3 values as gauge and text with plotly

It´s working and looks okay, not much configuration right now, you have to set your inverter ip in the hoymiles_data.py and add the config to display the html.

Maybe someone sees this and finds it usefull, if there is any interest in the community I can work on this some more

https://github.com/schris88/MMM-Hoymiles-Wifi
moderator edited to expose the full url

[KristjanESPERANTO]

@schris88 Nice :-) Don’t forget to add it to the module list: https://github.com/MagicMirrorOrg/MagicMirror/wiki/3rd-party-modules

[evroom]

@schris88

Hi there,

I am using hoymiles-wifi myself and am curious on how it looks on the MagicMirror.
Very nice initiative !!

Trying to get your module working, but no luck till now.
I will open some Issues for you to have a look at.

Best regards,

E.J.

[schris88]

@evroom We will make this work, great input, there is so many possibilities what and how to display the data.
Im thinking about feeding a free tier mongodb or some local docker db for long time charts.

[evroom]

@schris88

It is working now.
I see it displayed on the MagicMirror.
Due to no sunshine I cannot check actual values, but that is for later.

[SuVo]

@schris88 dfg
Hi,
I am using
HMS-800W-2T
I have done your installation steps but there is no output on my MagicMirror.
The source http://127.0.0.1:5000 is correct?
What can I try?
Have you any idea what could be wrong?

[evroom]

@SuVo said in MMM-Hoymiles-Wifi:

What can I try?
Have you any idea what could be wrong?

You have to edit
~/MagicMirror/modules/MMM-Hoymiles-Wifi/hoymiles_data.py
Change this line to the address of your DTU:
dtu = DTU("192.168.178.114")

And I had to change

 width: "288px",
 height: "360px",

in the ~/MagicMirror/config/config.js file.

This is my config:

{
  module: "MMM-Hoymiles-Wifi",
  header: "MMM-Hoymiles-Wifi",
  disabled: false,
  position: "top_left",
  config: {
    width: "288px",
    height: "360px",
    updateInterval: 60000, // in milli seconds
    frames : [
      { src: 'http://127.0.0.1:5000' },
    ]
  },
},

[evroom]

Just FYI.

I am currently busy making some changes to the module.
As there is no sunshine due to the current weather conditions, it is a bit difficult to have real measurements.
Trying to add a test using a JSON dataset.
Hope to be able to present it a.s.a.p.

E.J.

[sdetweil]

@evroom said in MMM-Hoymiles-Wifi:

~/MagicMirror/modules/MMM-Hoymiles-Wifi/hoymiles_data.py
Change this line to the address of your DTU:
dtu = DTU(“192.168.178.114”)

sounds like a new config parm so you don’t have to edit the file
(pass as a parameter on /hoymiles_data.py start)

[evroom]

@sdetweil said in MMM-Hoymiles-Wifi:

sounds like a new config parm so you don’t have to edit the file
(pass as a parameter on /hoymiles_data.py start)

Exactly!

I did change hoymiles_data.py to be able to refrain from hard-coding it:
python hoymiles_data.py --dtu_ip_address 192.168.178.114--debug
The next thing would be to pass the parameter(s) from the configuration (to be coded in the MMM-Hoymiles-Wifi.js file).

As I never made a module myself, I would need to find out how.

Any suggestions are much appreciated!

E.J.

[sdetweil]

@evroom put it in the modulename.js defaults section
i bet the config is already passed to the node helper which execs the python script.
yep

  this.sendSocketNotification("INIT", this.config)

then the user adds the property to the config.js module entry, as they are editing it anyhow

[evroom]

@SuVo

Hi, question,

do you live somewhere sunny ?

Could you try the run this and share the output ?

hoymiles-wifi --host 192.168.178.114 get-real-data-new

You’ll need to change the IP to the IP of your DTU.

E.J.

[evroom]

@sdetweil said in MMM-Hoymiles-Wifi:

i bet the config is already passed to the node helper which execs the python script.

Actually the python script is being executed via a shell script (in order to make it running using pm2).
I do not see anything in the node_helper.js file.

This is mainly due to the fact that the developer of the module used MMM-HTMLSnippet as basis and concentrated more on the data that he wanted to display.

The challenge is now to have everything running inside the module, without this ‘external’ stuff.
As all modules tend to do.

[sdetweil]

@evroom see my pythonPrint module for how to execute a python script

https://github.com/sdetweil/MMM-PythonPrint
you can also exec a shell script too

and launch pm2 to start/stop that shell script

[schris88]

@evroom said in MMM-Hoymiles-Wifi:

@sdetweil said in MMM-Hoymiles-Wifi:

i bet the config is already passed to the node helper which execs the python script.

Actually the python script is being executed via a shell script (in order to make it running using pm2).
I do not see anything in the node_helper.js file.

This is mainly due to the fact that the developer of the module used MMM-HTMLSnippet as basis and concentrated more on the data that he wanted to display.

The challenge is now to have everything running inside the module, without this ‘external’ stuff.
As all modules tend to do.

This is true, it´s a hacked proof of concept, nothing to be proud of at the moment :D

Not sure how much time I have for it till end of year, I can grant write access to anyone who´s willing to help.

[evroom]

@schris88 said in MMM-Hoymiles-Wifi:

This is true, it´s a hacked proof of concept, nothing to be proud of at the moment :D

Not sure how much time I have for it till end of year, I can grant write access to anyone who´s willing to help.

Not to worry. You sparked an idea.

I have some modifications ready (I forked it), but fighting with github to get it synced (github wants to delete all my modifications when I try).
Perhaps granting me access (evroom) wil make it easier.
Although it is not really the way to use github, I guess.

E.J.

[sdetweil]

@evroom

you fork
clone fork //git clone
make new branch // git checkout -b nane
make code changes
// this part multiple times
add to files to commit // git add filename
git commit
git push // to add to github fork
//

on github go to original repo source
create pull request // for origin to pull changes from your fork

if subsequent push to same branch, PR will be updated automatically

[evroom]

@sdetweil said in MMM-Hoymiles-Wifi:

git commit
git push // to add to github fork

I am stuck here.
Will open a new topic for it …

[evroom]

Hi there,

I made some major changes to the code and hopefully did all the GitHub stuff correct in order to allow persons interested to give it a (new) try.

https://github.com/schris88/MMM-Hoymiles-Wifi

There is still a lot to do (see ‘TODO’ in the README file), but I think the basis provided by Christian (@schris88) has been strengthened.

Best regards,

E.J.

[evroom]

@schris88

Christian,

This is on the TODO list:
change pv_data to dtu date for combined output of inverter

But I do not really understand what you mean by it.
Do you mean combined output of 2 panels iso just 1 ?

Please elaborate.

E.J.