New ESP32 board teaser – Power Over Ethernet ESP32-POE is perfect for sensors using existing Ethernet wiring


You asked for it and we made it – this is one of our first prototypes of ESP32-POE board

  • ESP32-WROOM-32 module
  • UEXT connector
  • CH340 for programming
  • Si3402 PoE power managment
  • 100Mb Ethernet
  • Size 73 x 28 mm
  • two GPIOs stripes spaced at 1″ on 0.1″ step
  • Lipo battery charger
  • USB programming/power supply connector
  • micro SD card connector


These will be available for sale end of August.

15 Comments (+add yours?)

  1. Trackback: Olimex Unveils ESP32-POE Board with... PoE Support
  2. Eduardo Ruiz
    Jul 26, 2018 @ 15:31:49

    ¡¡¡¡¡ Thanks a looooooooot !!!!!!


  3. Trackback: CNXSoft- новости Android-приставок и встраиваемых систем » Olimex представляет плату ESP32-POE с поддержкой PoE.
  4. SK
    Jul 29, 2018 @ 14:35:09

    Wow, it seems there really is a demand for such solutions, a recent Hackaday project with similar goals:


  5. Mark Stevens
    Aug 04, 2018 @ 00:42:45

    This is very interesting! Can we please get the pinout diagram?


  6. Aidas
    Aug 06, 2018 @ 15:29:18

    yes! Good news! Looks like olimex guys really listens to customers! Patiently waiting for the “end of August”


  7. anonymous
    Aug 21, 2018 @ 08:10:57

    Super cool, but why no isolation transformer? Isnt it non compliant with the poe standard now?


    • OLIMEX Ltd
      Aug 21, 2018 @ 08:15:42

      We wanted to have compact board where you can attach sensors. Adding insulation would make it bigger and expensiver, we will release such board later, but in the user cases we have in mind the insulation is not necessary as you just attach some sensors to the board via UEXT and do not need power supply cables.


  8. emo
    Aug 30, 2018 @ 19:42:43

    What POE standard does it use?


  9. Bjorn Bollingh
    Sep 04, 2018 @ 23:20:05

    Any news update on this


  10. Trackback: Weekly Roundup #56: New Maker Products // News - MickMake
  11. Dave Brooks
    Sep 28, 2018 @ 18:28:19

    That little thing looks perfect! Do you have any plans to get it CE certified? I’ve not found anything with both WiFi and Ethernet PoE that is.


  12. Mat Smith
    Feb 10, 2019 @ 01:09:51

    I just bought one of these. My initial thoughts:
    1) I am really happy it’s available for a good price. I had to buy on ebay as it was just too expensive with taxes directly from Olimex website.
    2) I personally don’t think it’s a problem that there is no galvanic isolation between PoE and USB. This device is great for embedded sensors in the home. I appreciate it may not be compliant with standards, but to me this doesn’t matter if you remember to be careful. Once it’s installed (e.g. into the ceiling), nobody will need to plug in USB.
    3) Personally I don’t need SD card or LiPo battery circuitry and would LOVE to see a smaller board!
    4) Finally can I drill out the 2 little circles in the corners (same side as ESP)? Are they mounting holes?


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