Re: Listening for notifications/indications

[Johan Hedberg <johan.hedberg@gmail.com>]

Hi Youssif,

On Thu, Mar 28, 2013, yousif saeed wrote:
> I'm trying to communicate with a BLE module through a Linux machine
> (the module is running a heart rate profile). So far, I've been able
> to do everything I need except listening for Notifications and
> indications. I've searched through the web, forums, and even tried
> walking through the source code and still could not find the answer. 
> 
> I'm using kernel version 3.5 and bluez-5.3.
> 
> Any help is greatly appreciated as this is part of my final year project.
> 
> Thanks
> Youssif
> 
> Succcessful commands used so far:
> hcitool lescan
> hcitool lecc
> gatttool -b <Mac Address> --primary
> gatttool -b <MAC Address> --characteristics
> gatttool -b <MAC Address> --char-read
> gatttool -b <MAC Address> --char-des
> gatttool -b <MAC Address> --interactive
> 
> Failed commands:
> gatttool -b <MAC Address> --listen

You shouldn't need to use hcitool nor gatttool for the heartrate
profile. Instead, it should be enough to register a Heartrate Watcher
through the HeartrateManager D-Bus interface (see doc/heartrate-api.txt).
There's also a python script that will do all this for you in
test/test-heartrate. I've been able to use the script successfully with
my own LE heartrate device.

Johan