POV Hard Disk Drive Clock
Using an old hard drive, some 1 watt LEDs, a complete redesign of the hard drive motor drive circuit and an Arduino Marcin Gosiewski (damago1) has built a great looking clock. The display is nice and compact since he is using a 3.5 inch hard drive as his base. “The project involves controlling HDD motor (3 wire brushless dc electric type BLDC) using open loop control without feedback, and using back