Help me get Heart Rate data [OpenFit: Open source Gear Fit application]

Hello everyone, I am the developer of OpenFit a alternative to the Gear Fit Manager as it doesnt run officially on non-samsung roms. I have implemented various features (see the original post for feature list) and I am at the point where I want to attempt getting heart rate data. I am on CM and cannot use S Health. I was wondering for those who have used S Health with touchwiz, does the app show you heart rate? and pedometer etc? If it does I think I may be able to reverse engineer it, I just need the raw BT data. for this I would need someone who is able to run S Health and log BT data. In CM its under Settings>Developer Options>Enable Bluetooth HCI snoop log . This will capture all the BT traffic between the phone and gear fit.

If anyone is able to do this, please comment below. I would like to reverse engineer this and have it able to sync with google fit, and other fitness apps.

Requirements?:

• Stock Samsung Rom with S Health


• Root?

Please check out my app and my progress of OpenFit. Download available: http://forum.xda-developers.com/gear...ation-t3005697

I am also thinking of releasing it on the Google play store. thoughts?

Note 4 and Real Racing 3, low frame rate and some lags

I have a 910F (so snapdragon) Original Rom lollipop 5.0.1
I installed Real Racing 3, I expected a good quality and no lags... but unluckily there are a very annoying low frame rate.
What could be the problem?

If the problem is that default resolution is too high... there is some way to put a lower quality?

Can't set BAUD rate for USB-Serial device

I have an RK3066-based generic 2-DIN Android head unit (see here). I've managed to install a rooted image on it (Yay!).
I want to connect it to a vehicle CAN bus, and I'm trying with an ELM327-based USB to OBD2 adaptor (which includes CAN as one of its protocols).

When I plug it into Ubuntu desktop, I get a "/dev/ttyUSB0". I can access it with Putty terminal and send commands as per the ELM documentation. For primitive access from the command line, I can do this (just to see whether it works at a basic level, without any terminal program):

Code:

---

sudo stty -F /dev/ttyUSB0 speed 38400
sudo cat /dev/ttyUSB0

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And in another terminal:

Code:

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sudo sh -c "echo "\r\n">/dev/ttyUSB0"

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This produces "> ?" in the first terminal, in line with the expected prompt from the device. Good!

However, I can't get it to work on my Android device.
When plugged in, dmesg reports a Prolific USB-Serial device found and added to /dev/ttyUSB0.
"ls /dev/ttyUSB0" shows that it exists and is owned by "radio".

"stty -F /dev/ttyUSB0 speed" shows the speed is set to 9600 (this is also the default on Ubuntu desktop, and if not changed, the above test doesn't work).

However, I can't change the speed, and the test of sending a character to the decide doesn't work.
I've tried changing the permissions of the serial device (see this post) but it didn't help. I also tried changing to 'radio' with "su radio" but that also didn't work.

Whenever I try "stty -F /dev/ttyUSB0 speed 38400" I get either:
stty: /dev/ttyUSB0: cannot perform all requested operations
Or:
stty: /dev/ttyUSB0: cannot perform all requested operations: No such file or directory

I also tried with a couple of terminal programs including the "Serial Port API sample" app. The device never responds, and I think it is for the same reason (the baud rate isn't set to 38400). Note I can select the baud rate in these programs but I don't think it is actually set - stty still reports 9600.

I feel like I am very close to at least talking to the ELM327 but I am missing something. The Torque app claims to have found the OBD2 adaptor, but I can't actually connect it to a vehicle right now so I don't know if it actually works. In any case I need to access it from my own app.

Wondering if anyone knows the answer to this problem... I can write my own app to access /dev/ttyUSB0 (in theory...) but don't want to waste my time if it's hopeless!