Reply To: Cheapest way to get a PoE-powered board reporting from my workshop

Posted October 22, 2026 at 10:06 pm #2

Cheapest is any ESP32 + a W5500 module + an 802.3af splitter that outputs 5 V. Maybe 15 total. Lots of jumper wires though, and the W5500 boards are picky about 3.3 V.

Ask me about 4–20 mA.