libfitbit compatible with "Fitbit One"?

[gyhor]

The Fitbit One uses bluetooth 4.0 for the communication. Is it enough to get bluetooth 4.0 working in linux for using the Fitbit One?
Or does it use a completly different protocoll?

[qdot]

So I was curious about which radios are in the FB1. On their page, they show bluetooth to phones, "Wireless sync" to desktop. Is it possibly they're running two radios?

(Obviously since I'm asking this question, I don't have one :) )

[gyhor]

you get a bluetooth dongle for your computer. So i think the device has only a bluetooth connectivity.

[qdot]

Well crap. Good thing I know bluetooth now. :(

Will see about picking one up soon and starting work on this.,

On Wed, Nov 28, 2012 at 9:05 AM, gyhor notifications@github.com wrote:

you get a bluetooth dongle for your computer. So i think the device has
only a bluetooth connectivity.

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/46#issuecomment-10810910.

[jonobacon]

Hey qdot,

I have a Fitbit One - is there anything I can do to capture bluetooth traffic to help you get a better understanding of how the device works. I did try to 'hcitool scan' for the device, but I didn't seething appear. I also scanned with blueman and see nothing.

I am not sure how to get more data that might be useful - I did post to http://askubuntu.com/questions/227393/how-to-get-data-from-a-bluetooth-device-that-is-not-visible to see if anyone can advise. Thanks!

[qdot]

Bluetooth doesn't work the same way as USB. Dumping logs might be a bit premature if the new fitbit conforms to HDP (health device profile) and we could discern things from the spec.

That said, reading and implementing yet another bluetooth spec is absolutely nowhere on my list of things I feel like doing with my spare time at the moment (I just finished helping implement bluetooth on FirefoxOS). If someone else wants to pick this up and run with it, be my guest.

[benallard]

So they stopped supporting the ANT protocol ?

Just out of curiosity, how do you reload the device then ?

[qdot]

Yeah, I think it's just bluetooth only now? Makes sense, cell phone manufacturers weren't really picking up ANT radios, which is what they're concerned with...

[n8willis]

Shouldn't be too hard to test if the device is using HDP; BlueZ supports the profile. There's a Python test tool called HDPy: http://gitorious.org/hdpy

[qdot]

Well if someone wants to dump the SDP records, we could just read the service UUIDs and go from there. I still don't have one. :)

[simcop2387]

It's possible that it's all over bluetooth, however the dongle that comes with the FB one reports itself as an HID device to the kernel. I haven't been able to contact it over bluetooth myself yet so I can't confirm anything of that nature yet.

[trtg]

If that's true, I have a hardware USB scanner I could use to sniff the traffic between the dongle and a windows machine.... it's just hard to justify getting another fitbit since I have the old ultra.

[n8willis]

Seems a little odd ... there is a HID-over-GATT (ie, LE) profile, but BlueZ only added support for it in 5.0 -- in Dec 2012. I'd think it might be a misidentification.

[simcop2387]

This is for the USB dongle itself, not the device over bluez (I haven't had any success at getting it to talk over bluetooth, it's apparently only supporting the iphone 5, and ipad 3 and the like that way at the moment).

Here's what it looks like in windows. I've attempted to get a sync captured with wireshark since I've got it working in an XP VM but I'm not sure I'm getting the proper data. Any advice on doing usb capture?

[theorbtwo]

The fitbit one itself may or may not be a bluetooth HID device, but the "bluetooth dongle" that comes with it doesn't show up over usb as being a bluetooth dongle at all -- rather, it shows as a hid device. I did, however, open up my dongle; it is a Texas Instruments cc2540 (http://www.ti.com/product/cc2540) plus a very little bit of supporting electronics.
lsusb -vvv output for the dongle is at http://pastie.org/5713106

[qdot]

Huh. Was just talking to someone about that a couple of days ago, wondering if they'd gone with a dual band chip. Guess they did. Wonder why they're keeping ANT on as well as bluetooth le though.

So, ok, there's a chance the ANT stuff (and therefore libfitbit in its current state) /could/ still work on desktop, though I'm betting some of the initialization stuff has changed.