Adding a USB power port to a switch for IoT


Jesus Echavarria wrote a how-to on adding a USB power port to a switch:

I want to start some projects with Arduino and IoT, so the first things I need is an Arduino board, an Ethernet shield and a switch to connect it to the net. Also I need a power supply for the Arduino board, and I think that, better than a external USB AC wall adaptor or power supply, is modify the switch to add it a USB power port that can power the Arduino board. I’ve got at home a TP-Link TL-SF1008D, a simple 8 port 10/100 Mbps switch. So, let’s go to open it and add it the USB port!

More info at Echavarria’s blog.

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1 Comment

  1. but doing this means that your Thing of Internet is stuck right next to the switch; it’s why we have PoE!

    In related puzzlement, why all the hacker-friendly ethernet adapters (shields etc) do not support PoE I do not know. It would make them 10x more useful.

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