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Building iPhone OS Accessories: Use the iPhone Accessories API to Control and Monitor Devices by Ken Maskrey

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Chapter 4. The Game Controller

This chapter digs into the game controller that you'll be using to interface to the sample application, the Pong game. Your understanding of the controller will be developed from the inside-out, meaning that I will discuss the initial design and show the various stages of development from logic diagrams to the completed unit.

However, before getting started on the game controller, it might help to take a detailed look at another sample accessory that is currently in production at the time of writing.

The Griffin iTrip

For a long while now, Griffin has been making accessories for every popular MP3 player on the market including the iPod and iPhone. One of their most popular devices, the FM transmitter, takes the output ...

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