Unveiling secrets of the ESP32: creating an open-source MAC layer

Re:Unveiling secrets of the ESP32: creating an open-source M... by jcalvinowens on Wednesday December 06, 2023 @05:55PM (#38550633)

Based only on my own anecdotal experience... I think the hole the cables go through is the biggest problem in OPs setup. I'd solder the shields to the cage circumferentially around the hole. Shielded USB cables aren't too hard to find, it wouldn't be as good as something optical but it's a lot easier.

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Re:Unveiling secrets of the ESP32: creating an open-source M... by 127361 on Thursday December 07, 2023 @11:24AM (#38558254)

Feed through capacitors for power and use fiber for the rest?

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Re:Unveiling secrets of the ESP32: creating an open-source M... by jcalvinowens on Thursday December 07, 2023 @02:03PM (#38560374)

If power was really the problem I'd just use a battery inside the cage.

Related, this is a neat experiment which powers a galvanically isolated circuit optically using LEDs and a solar cell: https://youtu.be/9JinSfCKuNQ?t=823&si=kBwesUsVgAGBVVwq

He didn't need to block RF though, the interface seems mechanically challenging to build into a cage.

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