Thanks, I also thought it might work, so I tried first without the amplifier; it didn't work,iPad2caseipad 2 cases leatheriPad2 case at least at this data rate (57600). I don't know however if Arduino's serial port would work correctly receiving only 0-3.3V for lower data rates (most iPad/iPod/iPhone accesories that use the serial port communicate at 19200 bps).
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