Hiya!
Want to start off by saying thanks for the upload. I have this running now and it appears to be working. I was thinking about the USB plug on the back of my UPS I am using for my 3D printer and wondering if anyone had something to integrate the two. Not sure if you read my mind, but nice job regardless.
That being said, there obviously isn't much here on how to get NUT going. I personally have never heard of it before reading it on your plugin description. Also, Linux is as powerful as it is convoluted.
When looking at the plugin config page, I though the device must be connected via Ethernet. Perhaps this is just a me thing, but it may be worth being explicit here. I'm not sure it can be set up via Ethernet (I'm new, but can't imagine that it CANT be done).
I Googled Raspberry pi NUT and stumbled across this guide:
https://community.openhab.org/t/beginners-guide-to-network-ups-tools-nut-on-a-raspberry-pi/78443
Which in turns also references:
https://melgrubb.com/2016/12/11/rphs-v2-ups/
It went OK. I did ultimately get it running. But these guides could use a little work. That being said, it would be great to have a guide here linked on the GITHUB (perhaps one that is better than these).
Anyways, thanks again for the upload. It appears to be working!
documentation help wanted