Not too long ago, David Finland built a device capable of communicating with just about any model of iPod via the dock connector using an Arduino Nano, PodGizmo breakout board, an old USB iPod connector, and a momentary switch. While it may not sound like a big deal, there is more to it than one might think: namely programming a device (in this case the Arduino Nano) to be able to receive, interpret, and respond to messages sent from an iPod. 

This means teaching it to speak Apple Accessory Protocol and, although proprietary in nature, it has been fairly well documented around the Internet. Finland slung some code so that his iPod touch was hooked up to one of the famous Staples Easy buttons in his car. Now he could easily play and pause his iPod touch without having to fiddle with the on-screen controls.

Fast-forward several months and Finland had all but forgotten about the project when he was asked by the folks that run Make magazine to talk about it. In particular, they wanted him to talk about the library he created for communicating with Apple’s portable audio players. He said yes, and decided to dive back into the project and attempt to add additional functionality to the project. 

Finland's first go around only involved tackling the the Simple Remote portion of the Apple Remote Protocol, which handles things like mute, next playlist, skip, and turning the device on and off. With newfound interest, however, he has now tackled the Advanced Remote portion, which opens up a bevy of new functionality, including getting names of songs, albums, artists, and track time; toggling shuffle and repeat mode; and all the other neat functionality that iPods have.

This newly released library of code will surely appeal to the do-it-yourself hackers who love tinkering, soldering, and programming. Someone could theoretically even build his or her own iPod speaker solution with a plethora of different options and feedback. The more daring could hard-wire a solution to a car’s in-wheel audio controls. Personally, I envision some sort of bicycle solution that docks the iPod on the handlebars but allows riders to control the device without taking their hands off the handlebars. An even more enterprising individual could rig something like this up to a sudden motion sensor so that when someone enters a room, the iPod begins to play.

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