No, its actually 2 different batteries with correct daily data (compared with fusion solar)
Massive thanks to all the hard work.. You are awesome @Andi
Excuse a stupid question, but should I add the dongle device on top the Huawei meter, inverter and battery? I don’t want to disrupt what I have since it’s working as well as it does, so I just want to understand what the dongle devices adds in terms of features and/or monitoring..
New feature in 1.1.30: Widgets for your Homey Dashboard:
- Solar Energy Flow: hub layout, animated flow lines, SoC, hub icon, threshold settings
- Grid Traffic Light: SoC in battery state, auto‑hide when no battery is present, threshold settings
- Energy Balance: daily bars, midnight baseline logic, battery row
- Battery Status: SoC bar, remaining time, capacity setting, “no battery” state
- Daily Yield: auto‑scaling, optimizers, CO₂ with configurable factor
Wow that was great. I hope your translating this. Even thow i love the german language it is not my wifes prefered one 
You know the wife approval factor
Hoi, ik heb de SUN2000 inverter (modbus) succesvol toe kunnen voegen met het juiste ip adres. Maar er komt geen data binnen? Waar zou dat aan kunnen liggen? (homey pro 2023)
edit: modbus id gecheckt en is juist (1 voor omvormer en 100 voor dongle).
edit: firmware geupdate van dongle en inverter en nu komt er data binnen
It would be great if you could rewrite your post in english - Thank you
Hello @Andi, had my solar system activated today and added all the following devices:
Now there is a difference between what is being exported/imported or “feed-in” to/from grid compared to the fusion solar app. Right now I’m 100% on battery and still shows every now and then some import from grid and export to grid instead of 0:
Can you help me check if it’s anything I did wrong?
Thanks
Welcome, and congrats on getting your system up and running! 
What you’re seeing is most likely normal meter measurement noise, not a configuration problem.
Here’s why:
Small grid values at near-zero load are expected.
Even when running purely on battery, smart meters like the DTSU666 measure residual reactive power, harmonics, and switching transients. Values of ±5–30 W flickering around zero are within the accuracy tolerance of the meter hardware itself. FusionSolar maybe filters and rounds these in their app display — My app shows the raw register values.
The EMMA showing −23 W is the grid power reading at that moment. Depending on the sign convention of your setup, negative = slight export or slight import. 23 W is well within normal noise range.
That’s how it looks like on my setup (as well on battery):
Which devices of my app did you install?
-As power meter use the EMMA Power Meter → seems to be correct
-If possible, use the modbus devices (luna2000 modbus and sun 2000 modbus without emma. use the emma devices if the “normal ones do not work”). with those devices you have more options and flow cards!
BR
Andi
Ok understood, sounds about right.
Yes exactly what I did for the inverter and battery.
I will have the smart charger also installed later on he week.
From next week I will be doing some reverse engineering to try and have control via API and I will test it on a sample app for homey. I will share my findings with you so you can integrate on your app if you want.
As I discovered it’s the only option available right now and how other integrations were done. The Modbus integration is not yet developed but they allow a more frequent refreshed/update on the API for this device.
Cheers
