Using Passive PoE with ESP32 for Industrial Applications

[losting]

Hi everyone,

I've been working on a project using an ESP32 board with passive PoE for industrial applications. It's powering a low-consumption sensor node, and so far, it's been running quite stably on a 12V PoE injector.

I'm aware that passive PoE doesn't involve negotiation like active PoE (802.3af/at), but in this setup it's working well since our system is isolated and voltage-controlled.

Has anyone here used passive PoE with ESP32 in a similar industrial environment?

Thanks!

[LubOlimex]

It depends on the exact hardware of the specific board, and especially on the chip that handles the PoE. What is the PoE chip in the board that you mentioned? Check its user's manual or datasheet.