Bluetooth protocol, physically possible ?

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18 Jul 2014 12:02 #24671 by Khan
Hi guys !
Having seen this Kickstarter project (Lego Bluetooth Remote Control) , I was wondering wether it would be possible to control the remote control brick (it is meant to be controlled with a smartphone with a Bluetooth signal) with a RC transmitter. So first question is : Is a DEVO transmitter (with Deviation of course) able to emit a Bluetooth signal ?

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18 Jul 2014 21:33 #24679 by btoschi
Replied by btoschi on topic Bluetooth protocol, physically possible ?
From Kickstarter site:
"The SBrick contains a Bluetooth Low Energy chip"

BT LE can be faked with nRF24L01, see
dmitry.gr/index.php?r=05.Projects&proj=1...etooth%20LE%20fakery .
But if that is sufficient for the SBrick is questionable.

On their site www.sbrick.com they state:
"All communication to and from the controller app is secured, so you don't have to fear that someone will steal control of your creation during a race."

Which would mean their protocol can be encrypted, which requires that it is not connectionless, and then the BT LE Hack above is not sufficient.
We'll have to see how the protocol looks when they're done (there is some chance its not yet stable), they want to publish it when done.

But don't count on it being usable with Deviation (unless you add a module with BLE112 chip on it and start programming it) :P

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21 Jul 2014 11:30 #24720 by Khan
Thanks for that precise answer ! :)

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