iphone charger and synchronicity

[kahraba]

Hey..

I made a small iphone charger working on usb from my pc, but now I want to do some synchronicity too. How to do that so?
And I just added a LED diode to it to look good.



PS: I know that D+ and D- should have different voltages like 2 and 2,8

 

[tpetar]

Hey..

I made a small iphone charger working on usb from my pc, but now I want to do some synchronicity too. How to do that so?
And I just added a LED diode to it to look good.



PS: I know that D+ and D- should have different voltages like 2 and 2,8

What is relation between "synchronicity" and USB phone charging ?

You mean to synchronize data between phone and PC ?



Best regards,
Peter

 

[kahraba]

What is relation between "synchronicity" and USB phone charging ?

You mean to synchronize data between phone and PC ?



Best regards,
Peter

Exactly

 

[kahraba]

Any one has an answer?

 

[Tunelabguy]

I think you can only do that through iTunes.

 

[kahraba]

I think you can only do that through iTunes.

My question is how to do the connection, because I dont know how its done on the pc usb normally.
Because one needs to let the D+ and D- be 2 volts.
And after that how to use these two as data wires again?

 

[kahraba]

update for help