6 replies to this topic

[tobbbie]

Hi,

...I am searching for clues how I can get my O2 XDA phone into the "Car" profile. Just using the headphone connector (with a 3pin headphone or a 4pin headset doesn't matter) will put the device in the headset mode. This is due to a dedicated switch inside the device. I suppose that as well a connected Carkit has to make use of this connector, but there must be some additional trigger to put in to "car" mode.

I have searched several forums and MSDN but I have not found a clue how this is achieved.

As well the obvious combination of headset connection and charging the device (via USB or AC Adapter) did not bring up the "car" profile. So somewhere there must be an additional trigger that puts the device in "car" mode.

Anyone to help me with a hint?

thanks + bye
tobbbie
:-)

[conan_troutman]

it recieves a signal via the usb to identify its connection as a car kit...thats why BT car kits use the headset profile

[tobbbie]

conan_troutman, on Aug 23 2007, 07:22, said:

it recieves a signal via the usb to identify its connection as a car kit...thats why BT car kits use the headset profile

Well , what mysterious signal might that be? I know that USB only requires 4 pins (2xsignal, ground and +5V), but the plug offers 5 of them. As I do not believe that real USB logic will be implemented in the CarKits, it most probably is something simple, e.g. connect the extra pin to ground or +5V or any of the two USB signals. I have found someting for Motorola USB here: http://pinouts.ru/Ce...er_pinout.shtml but for HTC I could not find anything similar.
An additional Problem seems to be finding a plug or cable that will offer you all the 5 Pins at your disposal.

bye
tobbbie
:-)

[conan_troutman]

tryasking the guys at PVT they make the car kits for htc phones and the USB / Jack conectotion type switch to carphone profile and the BT one conects to the headset profile...I have both cradle types in  my car one for long journeys and one for short ones so its one carkit one phone two types of cradles (interchange-able) and they both function differently.

so from that knowledge I summised...back to you.

[conan_troutman]

tryasking the guys at PVT they make the car kits for htc phones and the USB / Jack conectotion type switch to carphone profile and the BT one conects to the headset profile...I have both cradle types in  my car one for long journeys and one for short ones so its one carkit one phone two types of cradles (interchange-able) and they both function differently.

so from that knowledge I summised...back to you.

[kkrull]

conan_troutman, on Aug 23 2007, 14:47, said:

tryasking the guys at PVT they make the car kits for htc phones and the USB / Jack conectotion type switch to carphone profile and the BT one conects to the headset profile...I have both cradle types in  my car one for long journeys and one for short ones so its one carkit one phone two types of cradles (interchange-able) and they both function differently.

Have you used any of these PVT Products Before?
http://www.pvt-onlin...php?language=en

Edited by kkrull, 11 September 2007 - 01:16 PM.

[conan_troutman]

yes the unikit III is what I use in my car my Qtek 8310 uses an attached cradle, and my wife uses the BT conecter that can be pluged into the the adapter that holds the cradle...they do a wide range of cradle plus have=ing the BT adapter means I have one car kit that will suite any phone I buy...the cradle is best for volume and using in conjunction with tomtom