create hardware for iphone to connect with external device. arduino?

Question

hi i need to create a simple connector. I think i may need to create an arduino board that will take data from the application and then transmit them to an external device.

Answer 1

A company called Redpark make a serial cable for old and new style iPhone connectors. They also supply and SDk. This would not be for App Store Apps, however!

Redpark's iPhone/iPad/iPod serial cables