As mentioned in another thread, I wanted to make a board that takes an audio input and drives an RC servo for a skeleton or reindeer jaw. The one from Cowlacious seems good, but I'd like to try a slightly different approach. 3.5mm audio input and through sockets 3 pin header for hard-wired audio Jumpers to use left/right/both channels Jumper to adjust the bass response Adjustments for input sensitivity Adjustments for min and max jaw opening Possible proportional (to audio level) jaw opening I was also planning to make it P-DMX compatible for the power, so it could be chained off the same P-DMX system as some other designs I'll be doing soon. There is also a companion mp3 player board in the works, but that's for another thread. Comments and feature suggestions welcomed.