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joezydeco
on Jan 14, 2011
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Projects: hijack (Hijacking the iPhone earphone ja...
The O'Reilly "iPhone Hacks" book has schematics and sample code to push RS-232 in and out of the headphone jack. You'll need a self-powered device to decode FSK on the other end, of course.
Consider applying for YC's Spring batch! Applications are open till Feb 11.
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