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I was given a Big Mouth Billy Bass as a gag gift.
I decided to modify it so that I could “puppet” it from a computer.
Eventually, this led to connecting it to AutoTutor, with speech recognition, for an embodied tutor fish.
This same code can be used to puppet virtually any kind of novelty animatronic.
In this case I used a parallel port relay card, but there are many other possible ways to connect a PC to such an animatronic.