{"id":18565,"date":"2022-12-13T16:47:12","date_gmt":"2022-12-13T15:47:12","guid":{"rendered":"https:\/\/nerdiy.de\/?p=18565"},"modified":"2022-12-19T11:48:36","modified_gmt":"2022-12-19T10:48:36","slug":"howto-node-red-sma-sunny-home-manager-data-readout","status":"publish","type":"post","link":"https:\/\/nerdiy.de\/en\/howto-node-red-sma-sunny-home-manager-data-readout\/","title":{"rendered":"HowTo: Node Red - Reading SMA Sunny Home Manager Data"},"content":{"rendered":"

Has been in my network for some time (next to an SMA EV Charger 22 wallbox<\/a><\/em><\/strong>) also an SMA inverter for a photovoltaic system and an associated SMA Sunny Home Manager. The latter is installed in such a way that it can not only measure the energy fed into the grid. In addition, it also measures consumption. This means you can view the current electrical energy supply at any time. This makes it possible to have a good overview of how much energy is being generated or consumed at any time.<\/p>\n\n\n\n

This means that you can use as much energy as possible yourself (instead of feeding it into the grid) by using a high level of self-consumption of the energy produced.<\/p>\n\n\n\n

This is already possible at SMA using a special app. However, this only allows processes to be automated to a limited extent. Ultimately, I would like to be able to read and use this data for my own SmartHome system.<\/p>\n\n\n\n

The Node Red Code presented below is a first start. This means that the most common consumption and producer data can be read out. I also have to say that the code was not created by me alone. I was inspired by various (unfortunately no longer known) sources. (If you find your code here, please let me know. Then I'll add the information here. :))<\/p>\n\n\n\n

But now to my current Node Red code to be able to read out the data from an SMA Sunny Home Manager.<\/p>\n\n\n\n

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Safety instructions <\/span><\/h2>\r\n

I know the following notes are always kind of annoying and seem unnecessary. Unfortunately, many people who knew "better" have lost eyes, fingers or other things due to carelessness or injured themselves. Data loss is almost negligible in comparison, but even these can be really annoying. Therefore, please take five minutes to read the safety instructions. Because even the coolest project is not worth injury or other trouble.<\/span>
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Requirements<\/h2>\n\n\n\n

Helpful articles:
<\/strong>So that you can use NodeRed, NodeRed should of course already be installed on your Raspberry Pi.
How to prepare a Raspberry Pi for this and then install NodeRed on it is described in the following articles.<\/p>\n\n\n\n