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... Read the original article »