CD ROM turntable

This remake extends the bottom section of yealexander design to hold the electronics to drive the stepper motor. A potentiometer can adjust the rotation speed in both directions. The base has a custom PCB that contains an Arduino Mini, ULN2004 transistor array and 5V regulator. (Eagle files and Arduino sketch included).
I also superglued a CD-ROM to the top after spray painting the CD black.