Anyone got a working program to monitor a growatt inverter via usb or wifi on the raspberry pi please? Python to complicated for me 
Cheers
You need usb to RS485 (or RS232) and python but its not that hard.
For monitoring with pvoutput: https://github.com/jrbenito/canadianSolar-pvoutput
Though if using python3, you will need to modify the code (where print command does not include brackets)
For local monitoring: https://github.com/ZeroErrors/solarmon
I’ve been using the above for nearly two years now and it works well. There is a thread about it here Help Required Uploading Growatt Inverter To PVOutput
Bob.
I have tried to follow this tutorial: https://fixedbycode.blogspot.com/2014/04/how-to-upload-data-from-growatt.html
But i am not able to get all the packages needed for python. I think the commands are to old.
If someone has a working image for raspberry pi version b or never, i would really like to get a image file.
it must be the easiest way if i only have to change the api and user name for pvoutput.org
Any help in getting a raspberry pi working for uploading growatt data to pvoutput would be very much appreciated.
Thanks in advance