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I was wishing I had one just recently. I'm not smart enough to get my ancient APC UPS to interface to Debian with the USB cable, so I need a device I can ping that's plugged into the mains (ie not through the UPC) so I can run a script that shuts the server down when the Pi stops responding to the pings.
So that's all it'd need to do - respond to pings when it's powered on. I've ordered a B+ for exactly this job.
Have you tried using NUT? https://networkupstools.org/
No. That looks very promising. Thanks, I'll check it out!
That's a clever idea. My UPS does already have the smart pants features like that, but I love the simplicity of that as a concept.
Probably cheaper to just use an ESP8266 or the like
Thanks - I sort of had that Idea and looked at the ESP32 with an Ethernet port, but it was looking complex to flash because of no UART etc. Looks like the ESP8266 would need an add on for Ethernet? Plus I might still be out of my depth figuring out how to flash it?
I also considered an Ethernet hat for the Uno since I have a couple of them floating around somewhere, but in the end the B+ was cheaper. Those little boards would probably be better for power consumption as well though
All you'd need to program that ESP32 is an USB to UART adapter, you can get those for pennies on the dollar. I've never used Ethernet on the ESP32 so I can't attest to how easy it would be, however I do know that doing it over WiFi is super simple.
Does it have the weird rj50 (yes 50) endpoint ?
Yes
i have made a stl of that if you need the cable, it is janky but it works
Aww. Thanks. I've got the cable, I just need to invest some time into a couple of suggestions from here.
it should just work with KDE