PoE power for Hestia?

[dexterp37]

@HestiaPi

Unless you hack the board a lot or your system is seriously different from the rest of the world, I don’t think PoE will work. Additionally (again unless your system is seriously different from the rest of the world) you don’t really save any power cables as these cables should already be in place on the wall waiting for a thermostat to be plugged in.

Good point. My idea was to provide a stabilized power line to the rpi0: the PoE switch is backed up by an UPS, the furnace is not. However, I didn’t think of the implications for the H/W lines, good call.

@HestiaPi

Apart from that, your link looks OK and you will need a MicroUSB-to-Ethernet adapter (check compatibility with RaspberryPi first) but if you plan on plugging in the MicroUSB you will see that the USB for power is blocked by the relays. The only USB left is for data where your MicroUSB-to-Ethernet adapter should go so you would need to cut the USB plug from that PoE adapter and solder it directly on the +5V pin.

Just to clear up my mind: would this prevent using L/N for powering and the USB just for the ethernet adapter? i.e. should I still solder something even if I stick to use the mains power? (Maybe I should just create a new post in the forum :D)