Re: example GATT code to talk with a sensortag

[Don Zickus <dzickus@redhat.com>]

On Wed, Jan 13, 2016 at 10:44:02PM +0100, Łukasz Rymanowski wrote:
> >> Start discovery from org.bluez.Adapter1. After that find device object
> >> of your device. Then connect to this device form org.bluez.Device1.
> >> Once connected GattServices and GattCharacteristincs should be visible for you.
> >>
> >> All this you can do with d-feet of course.
> >
> > So, I tried your suggestions from within d-feet and made good progress, but
> > I don't think I am quite there yet.  Here is what I did inside d-feet:
> >
> > Under /org/bluez/hci0 -> Interfaces -> org.bluez.Adapter1 -> Methods ->
> > StartDiscovery  --> double clicked and 'executed' this
> >
> > Under /org/bluez/hci0/dev_XXXXX -> Interfaces -> org.bluez.Device1 ->
> > Methods -> Connect --> double clicked and 'executed' this
> >
> > Under /org/bluez/hci0/dev_XXXX -> Interfaces ->
> > org.freedesktop.DBus.Properties -> GetAll ---> double clicked, entered
> > '"org.bluez.Device1"' and 'executed' this
> >     ---> received  valid UUIDs, GattServices, etc as output
> >
> > Thank you!
> >
> >
> > I did _not_ see GattCharacteristic1 in the output, nor do I see either
> > GattService or GattCharacteristic1 show up as an interface in either
> > /org/bluez/hci0/dev_XXXXX or /org/bluez/hci0.
> >
> >
> > Did I miss a step or misunderstand your suggestion?
> 
> You got it well.
> To be more clear.
> If your bluetoothd runs with -E option and you connect to BLE device
> which expose any GATT services, after connect you should see new
> objects paths. Smth like this:
> 
> a) /org/bluez/hci0/dev_XXXXX/servicexxxx
> b) /org/bluez/hci0/dev_XXXXX/servicexxxx/charyyyy
> c) /org/bluez/hci0/dev_XXXXX/servicexxxx/charzzzz
> 
> etc.
> 
> Inside a) you should see GattService1 and inside b) and c) GattCharacteristic1
> 
> Just make sure -E is there and if still not work, provide btmon.log

Hi Łukasz,

Yup, I see those now and the expected GattService1/Characteristic1
interfaces.

Thanks! I'll use that with the example-gatt-client to get me going.  Thanks
again!

Cheers,
Don