Silicognition LLC
Power Management

PoE FeatherWing

Ethernet FeatherWing with 4 W of PoE power and globally unique MAC

$11,635 raised

of $4,000 goal

290% Funded! Order Below

In stock. Order now, ships within three business days.


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Adafruit provides an Ethernet FeatherWing peripheral board for its popular Feather ecosystem of development boards—a valuable option for IoT and automation projects. But it has its limitations. The Feather still needs to be powered separately, and no built-in globally unique MAC address is provided for the user, making deployment hard.

What if we could fix these issues? What if there was a drop-in replacement that would not only provide Ethernet, but also power your Feather, and give you a globally unique MAC? And still be 100% compatible in size, connections and software support? Enter the PoE-FeatherWing!


Simple Ethernet + Power for Your Feather Projects!

Arduino and CircuitPython example code is available on GitHub. This code includes examples like Arduino "Web Client Repeating", which allows you to make repeated HTTP requests using DNS, as well as others.

Ethernet FeatherWing running Arduino demo code

Specifications Compared

PoE FeatherWingAdafruit Ethernet FeatherWingwESP32
ManufacturerSilicognition LLCAdafruit IndustriesSilicognition LLC
Ethernet systemWIZnet W5500WIZnet W5500LAN8720A + ESP32
Ethernet throughput~13 Mbps~13 Mbps~90 Mbps
Ethernet MACGlobally unique - provided by 24AA02E48Manually appliedProvided by ESP32
PoE power4 W0 W13 W
Output voltage4~5 V0 V12 V or 5 V + 3.3 V
Form factorFeatherWingFeatherWingCustom
PCB size55.9 x 22.9 mm55.9 x 22.9 mm75 x 40 mm
CPUFlexible, off-boardFlexible, off-boardESP32, on-board

Early Bird Rev 2 Board

Testing of the initial 100 units showed a few small things that could use improvement. Most users would never notice a difference in normal use, so we are offering 100 early bird boards at a discount price, and they will ship shortly after the campaign ends.

Here is an explanation of the small differences in the early bird boards:

Rev 2 UnitsRev 3 Units
Minimum voltage under load4 V4.3 V
TransformerLink-PP with higher EMIHanrun with lower EMI
Max output power*3 W4 W

*A USB-powered Feather only supports 2.5 W, so both 3 W and 4 W are just fine.

Support & Documentation

Project development logs can be found at the project page.

Fulfillment & Logistics

See the ordering, paying, and shipping section of The Crowd Supply Guide for fulfillment details.

In the Press

Clive Maxfield High-Tech Consulting

"Well, I for one am very impressed. It always amazes me when someone like Patrick looks at something like an Ethernet FeatherWing and says to themselves, “Hmm, not bad, but I can do better.”"

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Produced by Silicognition LLC in Longmont, Colorado.

Sold and shipped by Crowd Supply.

PoE FeatherWing

A FeatherWing that provides Ethernet, up to 4 W of power, and a globally unique MAC to your Feather. Headers are included, but not soldered.

$29 $8 US Shipping / $18 Worldwide

About the Team

Silicognition LLC

Longmont, Colorado  ·

Silicognition LLC is an electronic design services company that focuses on deeply embedded, IoT and low power systems.

Patrick Van Oosterwijck

See Also

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