Hi all, I’d like to share how I integrated my Sunny Boy SMA solar inverter into openHAB - in case somebody likes to do similar. In combination with the astro binding (sun rise, sun set) it can look like this: [Screenshot_20180906_233843] You can ask your self if you start your dish washer now or…

[image] kriznik: maybe you will have some luck, but all rpi3 I’ve tried had frozing bluetooth after like 6-10 requests. rpi3+ does not have those issues at all. you can definitely try to run sbfspot with built-in bt and if it will work for whole day, you’ll have quite big chance it will run rel…

[image] Kim_Andersen: Regarding the BT… I´m not sure I have an BT dongle. I kinda hoped I could use the Rpi for this. I can organise you a Bluetooth dongle for the C2 if you want one? Odroid Bluetooth Module 2 Mini USB Bluetooth dongle for Odroid

Thanks Start. But I think I´ll try go with the LAN connection which is already there, (not sure if it will conflict with the inverter having connection to the SMA Smart Energy Meter at the same time). If it does, a BT dongle might come in hand.

Hi all, Sounds interesting, but I lost how to being able to gather information from SMA SunnyBoy with Speedwire WebConnect? Do I have to run the Python Script, or simply Mqtt, which is running on my OpenHab to connect to Worx Landroid anyway. I believr/understood I have to do some configuration wit…

It’s certainly interestesting, but is there a simple way to obtain data from the standard modbus binding ? In my case, there is a connection and I receive data from address 30775 , but I have an issue with the format. Kind regards, Pieter

[image] Pjotr500: is there a simple way to obtain data from the standard modbus binding ? Yep. Typical problems include register numbering versus addressing. Historically, modbus register number 1 is found at address 0. It is often unclear which variation any given document talks about. o…

[image] martinh: but how can I convert the powerout in W to automate the heater? This has so little to do with reading data from a Sunny Boy, you’d be much better off starting a new thread about this control method.

I recognize the formatting/parsing challenges, but have been able to setup a connection to my SMA Sunny Boy over the WiFi via the standard Modbus binding. I do still have some parsing challenges, where my current config has a Modbus poller for each data field eg. I have 1 poller setup on address 30…

[image] johanwww: The bigger issue I have is that the modbus data turns into garbage at night, There’s a FAQ here about that Modbus protocol interface | SMA Solar The established protocol for easy integration of SMA inverters. We might be able to help…

hi rossko57, thanks for your quick response. I did not see this in the FAQ and CPU shutdown in case of low voltage explains the behavior as indeed I see NaN values on a few registers. I managed to use a quick & dirty javascript transformation to “fix” this: (function(i) { if(i == -2147483648) …

Example on how to access data of a Sunny Boy SMA solar inverter

Tutorials & Examples

LeeC77 (Lee) March 20, 2023, 6:20pm 68

Hi
Just though I would cross link this thread to my new post, in case anybody finds this thread first and what I have done is of any use to them.