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Bluetooth over USB

Cables!
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There's this thing called Bluetooth which is a confusing and massively complicated specification that is supposed to ultimately make our lives easier.

The boffins that originally came up with the idea had the goal of replacing unnecessary cables. The philosophy was: setting it up would be as easy as plugging in a cable.

Somewhere along the line, this ideal got forgotten because the whole palaver is a painful mess of "searching" for "discoverable" devices on the airwaves before we can "pair" to them. Once that's done, hopefully the two things should plug themselves together automatically from then on.

But if we wanted that process to be as simple as plugging in a cable, why not make it actually consist of nothing more than plugging in a physical cable? If the "pairing" handshake were done by wired connection, this would also have security benefits, as that's the part that's most vulnerable to wireless snooping. Most devices already have a USB port, so suggested is the re-use of that port for the following scenario:

- I buy a shiny new wireless headset, and I want to connect it to my phone

- The headset has a USB port for charging, the phone also has a USB port

- I plug a cable from one USB to the other USB, and some digital ones and zeros go up and down the cable

- I unplug the cable, and the headset can continue be used wirelessly with the phone

This has probably already been thought of, and is also possibly redundant due to other technologies replacing and fixing these things.

mitxela, Jan 28 2018

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       Auto-pairing ? Put this up as an RFC, it might get into the next version.   

       You'd need a USB OTG adapter/cable for the phone, because they're normally a client, not a host - but that's about it, hardware wise.
8th of 7, Jan 28 2018
  

       USB is more than just a cable; it is also a communications protocol. Bluetooth is an entirely different communications protocol, and I don't know if it has one of USB's key features, the ability to handle/distinguish the connections of many devices to one computer port.
Vernon, Jan 28 2018
  

       This is about pairing, though; a one-off PtP connection is ideal. OK, the USB connection might be routed through a hub, but the "new device found" protocol will handle that.   

       Once passcodes have been agreed between host and client, job done.   

       This is simple and practical, thus making it entirely unsuitable for the Halfbakery.   

       Suggested title change "Bluetooth Auto-pairing Via USB".
8th of 7, Jan 28 2018
  

       This is how my Apple Magic Trackpad 2™ and Apple Magic Keyboard™ work – connecting via the Lightning™ to USB cable will initiate a pairing (as well as charge the infernal battery) and when disconnected, it remains connected.
Ian Tindale, Jan 28 2018
  

       // my Apple //   

       There's your problem, right there.   

       // Magic //   

       [m-f-d], magic.
8th of 7, Jan 28 2018
  

       Apple is superb, I won’t hear any criticism of Apple. For example, I don’t have to make irrelevant decisions such as which product to buy, what it should look like or what features it should have. All I have to do is pay them a lot of money and they handle that cognitive load for me.
Ian Tindale, Jan 28 2018
  

       " ... and with that admission, your Honour, we submit that the case of the Crown versus Ian Tindale is proven beyond reasonable doubt ... "
8th of 7, Jan 28 2018
  

       //Bluetooth is an entirely different communications protocol//   

       That just means we're tunnelling one protocol through another - which happens all the time. It's just one more level on the jenga- stack of protocols - right?
pertinax, Jan 28 2018
  

       ... just another brick in the wall.
8th of 7, Jan 28 2018
  

       //That just means we're tunnelling one protocol through another - which happens all the time. It's just one more level on the jenga- stack of protocols - right?//   

       If you want to pair something a long way away, some form of USB over IP and a few hundred feet of CAT6 should cover it. Could probably even charge by converting USB to PoE. How's the wifi version of PoE coming along?
bs0u0155, Jan 31 2018
  

       You could convert to midi first, then make that go over Ethernet, as wireless, and using NFC associate that with Bluetooth LE, and convert to line-of-sight light, and convert that to an audio sonogram on paper, and post it.
Ian Tindale, Jan 31 2018
  

       ... via carrier pigeon.   

       // How's the wifi version of PoE coming along? //   

       Mr Tesla had it working perfectly back in 1906, but Vested Interests killed the project ...
8th of 7, Jan 31 2018
  
      
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