It’s too late - I’m working for it for a few hours now and I formatted the SD card, new rasbian…
But thanks for help.

My plan was to install all modules and then copy the config.js back.

I did it like it is written in the MM manual.

git clone && npm install

But I saved the MM folder with all my settings.

That’s a good beginning :D
At the moment I have to install MM new, because the update failed and the system was stuck.
I will test it when MM ist working again.

How to get the MMM-Fronius results in a table?
It would be nicer with the code from @Cetax but at the moment it would be ok for me when I know what I have to change to get the result in a nicer form.

Is it possible to tell me how it works with the table?
In that case on the original code.

Wunderground API calls:
current weather:

https://api.weather.com/v2/pws/observations/current?stationId=here_PWS&format=json&units=m&apiKey=here_API

7 Day forcast:

https://api.weather.com/v2/pws/dailysummary/7day?stationId=here_PWS&format=json&units=m&apiKey=here_API

I don’t have an old version, but here the actual forecast:

{"summaries":[{"stationID":"IWURST7","tz":"Europe/Berlin","obsTimeUtc":"2020-12-26T22:59:49Z","obsTimeLocal":"2020-12-26 23:59:49","epoch":1609023589,"lat":53.771483,"lon":8.590322,"solarRadiationHigh":91.02,"uvHigh":0.0,"winddirAvg":189,"humidityHigh":97,"humidityLow":86,"humidityAvg":91,"qcStatus":0,"metric":{"tempHigh":5,"tempLow":-1,"tempAvg":3,"windspeedHigh":21,"windspeedLow":0,"windspeedAvg":7,"windgustHigh":31,"windgustLow":0,"windgustAvg":9,"dewptHigh":3,"dewptLow":-1,"dewptAvg":2,"windchillHigh":5,"windchillLow":-1,"windchillAvg":2,"heatindexHigh":5,"heatindexLow":-1,"heatindexAvg":3,"pressureMax":1022.82,"pressureMin":1002.71,"pressureTrend":-0.82,"precipRate":1.80,"precipTotal":0.30}},{"stationID":"IWURST7","tz":"Europe/Berlin","obsTimeUtc":"2020-12-27T22:59:15Z","obsTimeLocal":"2020-12-27 23:59:15","epoch":1609109955,"lat":53.771483,"lon":8.590322,"solarRadiationHigh":19.45,"uvHigh":0.0,"winddirAvg":198,"humidityHigh":95,"humidityLow":81,"humidityAvg":90,"qcStatus":1,"metric":{"tempHigh":5,"tempLow":3,"tempAvg":4,"windspeedHigh":27,"windspeedLow":2,"windspeedAvg":12,"windgustHigh":42,"windgustLow":4,"windgustAvg":17,"dewptHigh":3,"dewptLow":1,"dewptAvg":2,"windchillHigh":4,"windchillLow":-2,"windchillAvg":1,"heatindexHigh":5,"heatindexLow":3,"heatindexAvg":4,"pressureMax":1002.81,"pressureMin":977.62,"pressureTrend":-1.03,"precipRate":3.00,"precipTotal":10.21}},{"stationID":"IWURST7","tz":"Europe/Berlin","obsTimeUtc":"2020-12-28T22:59:43Z","obsTimeLocal":"2020-12-28 23:59:43","epoch":1609196383,"lat":53.771483,"lon":8.590322,"solarRadiationHigh":79.27,"uvHigh":0.0,"winddirAvg":199,"humidityHigh":98,"humidityLow":93,"humidityAvg":95,"qcStatus":1,"metric":{"tempHigh":4,"tempLow":1,"tempAvg":3,"windspeedHigh":10,"windspeedLow":0,"windspeedAvg":2,"windgustHigh":17,"windgustLow":0,"windgustAvg":3,"dewptHigh":3,"dewptLow":1,"dewptAvg":2,"windchillHigh":4,"windchillLow":0,"windchillAvg":3,"heatindexHigh":4,"heatindexLow":1,"heatindexAvg":3,"pressureMax":982.83,"pressureMin":977.31,"pressureTrend":0.18,"precipRate":3.00,"precipTotal":3.00}},{"stationID":"IWURST7","tz":"Europe/Berlin","obsTimeUtc":"2020-12-29T22:59:40Z","obsTimeLocal":"2020-12-29 23:59:40","epoch":1609282780,"lat":53.771483,"lon":8.590322,"solarRadiationHigh":61.53,"uvHigh":0.0,"winddirAvg":195,"humidityHigh":98,"humidityLow":93,"humidityAvg":96,"qcStatus":1,"metric":{"tempHigh":4,"tempLow":0,"tempAvg":2,"windspeedHigh":11,"windspeedLow":0,"windspeedAvg":2,"windgustHigh":17,"windgustLow":0,"windgustAvg":3,"dewptHigh":3,"dewptLow":0,"dewptAvg":1,"windchillHigh":4,"windchillLow":-1,"windchillAvg":1,"heatindexHigh":4,"heatindexLow":0,"heatindexAvg":2,"pressureMax":992.62,"pressureMin":981.61,"pressureTrend":0.44,"precipRate":1.80,"precipTotal":4.60}},{"stationID":"IWURST7","tz":"Europe/Berlin","obsTimeUtc":"2020-12-30T22:59:37Z","obsTimeLocal":"2020-12-30 23:59:37","epoch":1609369177,"lat":53.771483,"lon":8.590322,"solarRadiationHigh":98.36,"uvHigh":0.0,"winddirAvg":189,"humidityHigh":96,"humidityLow":92,"humidityAvg":94,"qcStatus":1,"metric":{"tempHigh":4,"tempLow":3,"tempAvg":4,"windspeedHigh":15,"windspeedLow":0,"windspeedAvg":6,"windgustHigh":24,"windgustLow":0,"windgustAvg":9,"dewptHigh":3,"dewptLow":2,"dewptAvg":3,"windchillHigh":4,"windchillLow":0,"windchillAvg":3,"heatindexHigh":4,"heatindexLow":3,"heatindexAvg":4,"pressureMax":1001.63,"pressureMin":992.42,"pressureTrend":0.37,"precipRate":3.00,"precipTotal":2.31}},{"stationID":"IWURST7","tz":"Europe/Berlin","obsTimeUtc":"2020-12-31T22:59:34Z","obsTimeLocal":"2020-12-31 23:59:34","epoch":1609455574,"lat":53.771483,"lon":8.590322,"solarRadiationHigh":78.05,"uvHigh":0.0,"winddirAvg":191,"humidityHigh":96,"humidityLow":87,"humidityAvg":91,"qcStatus":1,"metric":{"tempHigh":4,"tempLow":3,"tempAvg":3,"windspeedHigh":15,"windspeedLow":0,"windspeedAvg":5,"windgustHigh":18,"windgustLow":0,"windgustAvg":8,"dewptHigh":3,"dewptLow":1,"dewptAvg":2,"windchillHigh":4,"windchillLow":0,"windchillAvg":2,"heatindexHigh":4,"heatindexLow":3,"heatindexAvg":3,"pressureMax":1004.74,"pressureMin":1001.02,"pressureTrend":0.12,"precipRate":1.80,"precipTotal":2.01}},{"stationID":"IWURST7","tz":"Europe/Berlin","obsTimeUtc":"2021-01-01T11:19:57Z","obsTimeLocal":"2021-01-01 12:19:57","epoch":1609499997,"lat":53.771483,"lon":8.590322,"solarRadiationHigh":51.99,"uvHigh":0.0,"winddirAvg":191,"humidityHigh":98,"humidityLow":96,"humidityAvg":97,"qcStatus":1,"metric":{"tempHigh":3,"tempLow":-1,"tempAvg":1,"windspeedHigh":6,"windspeedLow":0,"windspeedAvg":1,"windgustHigh":7,"windgustLow":0,"windgustAvg":1,"dewptHigh":2,"dewptLow":-1,"dewptAvg":1,"windchillHigh":3,"windchillLow":-1,"windchillAvg":1,"heatindexHigh":3,"heatindexLow":-1,"heatindexAvg":1,"pressureMax":1007.11,"pressureMin":1004.23,"pressureTrend":0.17,"precipRate":4.80,"precipTotal":2.31}}]}

That is correct - here is my reply from Wounderground:

{"observations":[{"stationID":"IWURST7",
"obsTimeUtc":"2021-01-01T10:57:13Z",
"obsTimeLocal":"2021-01-01 11:57:13","neighborhood":"Deichsende",
"softwareType":"EasyWeatherV1.5.6","country":"DE",
"solarRadiation":16.0,
"lon":8.590322,
"realtimeFrequency":null,"epoch":1609498633,
"lat":53.771483,
"uv":0.0,
"winddir":193,
"humidity":98,
"qcStatus":1,"metric":{"temp":3,
"heatIndex":3,
"dewpt":2,
"windChill":3,
"windSpeed":5,
"windGust":5,
"pressure":1006.74,
"precipRate":1.19,
"precipTotal":2.01,
"elev":6}}]}

One way I forgot.

Upload the data to openweathermap and use a module it is working with, but I was unable to connect my weather station to openweathermap.

It’s nice to find some guys with the same problem.
My Son showed me yesterday a little bit about programming - but without any knowlege about programming it’s not easy.
For my weatherstation (Froggit WH4000ws, same as ELV WS980 and Fine Offset WH2350) are two ways possible - direkt from the station oder via a provider (Wunderground, Wethercloud and Ecowitt, WOW).
It would be nice to have a working solution.

For me it’s the same Problem.
My new Weatherstation can upload the dato to Ecowitt, Wunderground, Weathercloud, WOW an all Servers with the Ecowitt oder Wunderground protocol.
The problem is to find a working module to get my weather data on the mirror.
The biggest problem - i cannot code.

Hi Stefan,

I have also since 1 Month the Fronius Inverter and installed the MMM-Fronius, but the text is bad to read. So I like to install your code, but I have no permission to open or download it.
Can you help me?

Greetings
c1olli