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> I'm more hopeful for single-pair ethernet to gain momentum though!

I keep looking for a reasonably priced 10baseT to 10Base-T1L bridge... everything commercial seems too expensive (for me) and the two hobby designs [1] [2] I've seen are not orderable :(

But I'm seeing more commercial options lately, so that's hopeful.

[1] http://robruark.com/projects/10BASE-T1L/10BASE-T1L.html

[2] https://matthewtran.dev/2024/08/10base-t1l-converter/

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I really wish there was a camera option. You’d have made wired doorbell cameras possible without a retrofit.

I’d buy in a heartbeat

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SPE with multidrop and PoDL would be awesome ! They are working on that and it will be everywhere.
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Multidrop SPE isn't going to outperform newer CAN versions though. Somewhere in the sub-100Mb/s (e.g. 10-20Mb/s range) is the practical maximum speed of a multidrop bus at useful lengths, and that essentially applies equally to CAN or SPE. The only way to really get faster in a "multidrop-like" sense is with logically loop-like systems like ethercat and Fibre Channel where each network segment is point-to-point and the nodes are responsible for the routing.
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