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Oh dear god. I mean, that's a pretty cool idea, and maybe something that could be integrated into a separate product in the future, but right now that would mean I'd have to model a meander antenna inside the button (which I don't know how to do properly), put all the bluetooth components inside (which there is not enough space for) and write a mobile app in addition to the firmware and software I need now. Sorry, not gonna happen any time soon.




You know, seeing the rarity of all these components, it seems to me like a custom cable isn't such a bad idea after all. There are manufacturers for this kind of stuff, and they'd only have to cut a micro HDMI to HDMI cable up and add a three 0.1" pin headers to it. That's actually something I could do myself for low quantities and material cost would be quite low.




Ah I see. The problem with that is that these connectors are super small and need to be hand-soldered, so the manual labor cost would be very high. To be suitable for low- and high-volume manufacturing alike, I need to make sure most of the assembly can be done automatically.