August 17, 2010

Ethernet Shield for Arduino with Power-over-Ethernet: here at last

After months of plotting and scheming and prototyping and testing and fighting with EAGLE, the first production batch of the Freetronics Ethernet Shield with Power-over-Ethernet support has now landed. Ahh, it's a beautiful thing:

As explained on the product page it includes a few improvements to the reference design, such as:

  • Slaving the Wiznet enable line to the SPI select line
  • Improved power filtering for better noise suppression
  • Improvements to reset circuit to reliably reset the Wiznet chip when the Arduino resets
  • Power-over-Ethernet magjack with PoE connections brought out to a header
  • MASSIVE prototyping area!
To make it as cheap as possible to power your Arduino via the LAN we've given it the flexibility of supporting either full standards-compliant 802.3af/at PoE, or cheap home-brew PoE using something like our sweet new 4-Channel PoE Midspan Injector:

With our midspan injector you don't even need to hack any network cables for a cheap DIY approach. Just plug it in and away you go.

Have fun!

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