I have a few home automation sensors which can run on batteries, or permanently powered by 5VDC though USB. I also have a switch which supports PoE af and at, and a few spare ports.
Rather than go and run 240V to each sensor, and then wire that up to some USB power keystones (which I have a bunch of anyway fwiw) I wondered if I could just use up my cat6 roll by running it to each sensor location and use PoE to power them permanently.
Has anyone come across a method to use PoE to get 5VDC at the end of a max. 40m cat6 ethernet run and then terminate it with a female USB? Might this be easier to make something myself?