Raspberry Pi gets power over Ethernet

PoE Adaptor Board for Raspberry Pi

PoE Adaptor Board for Raspberry Pi

Raspberry Pi can be powered via an Ethernet connection using a 5V power over Ethernet (PoE) add-on adaptor board.

It is the idea of UK-based manufacturer Silvertel which has released a circuit and PCB layout for a 5V PoE adapter board and the information is available for free download and use by any manufacturer of accessories or general hobbyists.

As the adapter board can be used to power any 5V device, up to a power of 9W, it is suitable for powering a Raspberry Pi via a standard USB cable or DC connection.

This PoE splitter board has also been used to power the MarS i.MX6, Olimex A10-OLinuXino-LIME, BeagleBone Black, Element 14 RIoTboard.

Silvertel has made available through its website a bill of materials (parts readily available from on-line electronic component suppliers), a circuit schematic and the PCB layout.

Total compoent cost is less than £7 ($11 or €8.50), according to Silvertel.

The module provides an IEEE 802.3 compliant PoE input, capable of taking PoE power and data from any PoE injector. The 5V/1.8A output is provided on a USB connector or DC plug.

The board provides an IEEE802.3af signature to avoid any potential damage that could be caused by incorrect or shorted Ethernet cables. 5V-PoE-adaptor-board-back.

The board has mounting holes compatible with the Raspberry Pi board.

Download Circuit diagrams for PoE Adaptor Board

Download PCB silkscreen for PoE Adaptor Board

Download example BOM

 

Tags: BeagleBoard, dc power adapters, ethernet, Raspberry Pi

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2 Comments

  1. Matt
    October 05, 2014 16:53

    Uhmm, this isn’t anything groundbreaking. For $3 more you can buy the same thing from TP Link, already assembled and in a plastic housing. When I clicked on this I was expecting something that directly attaches to the rPi board and passes ethernet and power directly – not some “backpack” that still needs jumper cables to the ethernet and power jacks.

  2. August 13, 2014 19:01

    Great article from Silvertel. You can see a demo of this technology from EE Live 2014 in San Jose in this video https://www.youtube.com/watch?v=1C-hotTMkLY

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