julienAfter a good amount of time spent soldering and testing I plugged the PoePi into an Ethernet PoE switch and it worked! I was getting 4.8v out of the header which is barley enough to run the Pi (based on the USB standard). The low voltage can be accounted for by changing one of the bias resistors dividing the signal going into the opto coupler.
So I decided to change the resistor and fix some other components that looked a little ugly. During this process I accidentally left a trail of solder between the end of a cap and a resistor. This cause the transistor driving the isolation transformer to sink a whole bunch of current. So its dead.
Luckily I have to make another DigiKey order tomorrow so hopefully its back up and running.
If you are going to build of this design you can probably start using the PoE part of the design. But I still havnt actually tested the Ethernet communications so I would be weary of that.
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Have you had time to make any more progress on this project? I am working on a Pi-Zero POE IP-Camera, and was considering re-engineering this with the WIZ W5500 (its a little cheaper than the ENC624J600, and is what Adafruit uses on some of their boards) to gain 10/100 support. The servo version of this, upgraded to 10/100 would be perfect for that, I think, and it would be really great to hear some of your lessons learned.
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Hello Julien,
Thanks a lot for your contributions to the community, I'm very interested in this project as there's lots of outdoor IoT projects that needs network reliability (thus, no wifi) and could benefit from this HAT.
Keep up the good work,
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