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Hello,

I'd like to submit a project that I recently completed.

This project uses a laser pointer and a couple of motors with attached mirrors to display patterns (lissajous figures) that are in sync with music. The audio data is processed by a Python script that extracts frequency information, converts that to motor pulses and send it to the Arduino (clone) via the serial interface.

I have a complete write-up here, which also has a video:

http://makeprojects.com/Project/Laser+Lissajous+with+Audio+Sync/2840/1#.UL2CzYb5OP8

Regards