Jump to content

Writing own monitoring software


Recommended Posts

Hi all,

I got a Raspbery Pi for Christmas. Simultaneously I am getting more and more frustrated with SEMS portal because it seems to lose data every now and then or throw out completely out of whack figures.

So I am hoping that there is some port on the Goodwe ES, preferably read only, that I can use so as to query the machine at regular intervals and build stats.

I want to keep accurate month-by-month data to get an idea of how quickly I am paying back the investment, but because of earlier stability issues (now seem to be resolved) and glitches on SEMS portal, I have never got figures that look plausible.

So... I've got a PI. I have some programming chops. I would like to use Python (and have a Python IDE on the PI).

I would like to write my own here. I need to get to grips with Python, so this seems like a good way to do that whilst working towards something that has an actual purpose (which, for me, makes the learning easier).

So next steps?

Link to comment
Share on other sites

1 hour ago, P1000 said:

What is the plan?

How does the Goodwe interface currently?

If you have a protocol and a way to read it, writing an interfacer for emonhub should not take very long.


At present I have apps on my phone that connect to the inverter's own WIFI, or I can use SEMS portal which uses data that the Inverter sends over the internet. The two don't always agree.

The inverter allows only 1 incoming wifi connection, so if I use wifi on the pi to connect to the inverter there could be problems.

Link to comment
Share on other sites

I'm very interested. I don't have anything monitoring my system except a Mooshimeter (MM) to simultaneously show current (bi-direction) and battery volts.  (The AUXILIARY VOLTAGE DC = shunt-connected wires directly to MM, about 5mV/A.) This tells me lots but I would prefer to have still more information.  Please can you update me about your progress?

Thanks, A




Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...