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Hijack - iPhone Sensors Thru Audio Jack

seeedstudio.com

1–10 of 37 posts

Re: Hijack - iPhone Sensors Thru Audio Jack

#3
post #2

What's the advantage of using the headphone connector rather than the dock connector? edit: thanks all, I forgot about the licensing requirement for the dock connector

License fee and dependence on Apple?

See this http://www.quora.com/Apple-Inc-2/What-is-the-royalty-Apple-c...

Re: Hijack - iPhone Sensors Thru Audio Jack

#4
post #2

What's the advantage of using the headphone connector rather than the dock connector? edit: thanks all, I forgot about the licensing requirement for the dock connector

Using the Dock connector involved paying Apple a licensing fee. This circumvents that, and it's similar (although more involved) to how Square's card readers work.

There is already an iOS serial cable though, which I would think would be a better option for many projects:

http://redpark.com/c2db9.html

Re: Hijack - iPhone Sensors Thru Audio Jack

#7
post #2

What's the advantage of using the headphone connector rather than the dock connector? edit: thanks all, I forgot about the licensing requirement for the dock connector

While I think the other commentators have the main reasons, I'll add that this solution also let's you charge the iPad at the same time.

Re: Hijack - iPhone Sensors Thru Audio Jack

#8
post #4
post #2

What's the advantage of using the headphone connector rather than the dock connector? edit: thanks all, I forgot about the licensing requirement for the dock connector

Using the Dock connector involved paying Apple a licensing fee. This circumvents that, and it's similar (although more involved) to how Square's card readers work. There is already an iOS serial cable though, which I would think would be a better option for many projects: http://redpark.com/c2db9.html

" Under current Apple policy this cable may not be used with apps sold on the App Store."

That's an odd condition of Apple's terms. Why is this so? If I go through the process of designing and approving a hardware device, I can't sell an app to go with it? Or do I have to provide the app in tandem with the device?

Re: Hijack - iPhone Sensors Thru Audio Jack

#10
I think this is a novelty at best.

The electrical interface standards may change between devices (voltage/current sink ability) and even between software releases (power saving etc) resulting in a sudden "it stops working" moment.

The basis of it is also flawed on the fact that it's a workaround for a closed platform at which point it's probably better to just use an open one.

Hack yes. Novelty yes. Don't build anything important with it.

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