anelok: revisiting Bluetooth, tentative roadmap 2/2
paul at boddie.org.uk
Sat Nov 23 12:32:40 EST 2013
On Saturday 23. November 2013 16.53.44 Werner Almesberger wrote:
> Another benefit of combining dongle and Y-Box would be that we'd need
> only one host USB port for the pass-through scenario of .
You may have to draw us another diagram. :-)
One thing that I belatedly realised after our previous discussion of the Y-Box
was that the hypothetical but not actually described scenario of using Anelok
as a USB peripheral as well as a host depending on what the Y-Box has
connected, which is admittedly awkward, reduces to the Y-Box effectively
behaving like two hubs in one:
PC -> Y-Box -> Anelok
Here, the Y-Box provides bus power like an unpowered hub.
Anelok -> Y-Box -> Keyboard
Here, the Y-Box provides its own power (actually from the PC) and acts like a
powered hub: the PC is the power source, not batteries or mains electricity or
So, you have an unpowered hub and a powered hub in the same box.
> Oh, and there's no reason why I should be the only one having fun.
> The enhanced Y-Box would make a nice little sub-project for anyone
> interested in playing with that sort of BE/BTLE-capable RF device and
> enough "trailblazing" as been done on the MCU side already that this
> shouldn't be overly daunting.
You're not the only one having fun, Werner. ;-)
It does get me thinking about the notion of a smart USB hub, though, despite
my instinctive dislike of the technology.
>  http://downloads.qi-hardware.com/people/werner/anelok/tmp/comm.pdf
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