An old NES controller was used to control the spinning of R2’s head, where a dismantled toy’s switch was rerouted through the NES controller, allowing the droid to spin for a good 15 seconds or so whenever the A or B buttons on the refurbished controller was pushed. Audio is provided from downloaded R2-D2 sound effects, where the Pinnacle movie studio software was used to ensure all of them are strung together into a 50-second MP3 file that is subsequently loaded onto an iPod and hooked up to a small portable speaker system.
Neat! This seems to look like a very interesting weekend project – are you up for it?