HDD BLDC with motor shield and Uno

Other Hardware Motors, Mechanics, Power and CNC
1

So I've got this old Western Digital IDE Drive that I've now scrapped. The motor itself is the only thing left in the casing and I've soldered 4 wires to the 4 pads on it. I tested and determined which one is probably the common based on it being 1 ohm and the others being higher (relative).

This is the motor shield I have. It uses L293D drivers (has 2).

Right now I'm struggling to find anything that's not someone with a breadboard and some transistors. I've worked with continuous rotation servos and stepper motors and an easydriver in the past, but nothing quite like this since I need the high speed rotation and the ability to control the speed (ideally).

Any help would be greatly appreciated as I'm kind of stuck at the moment.

2

The hard drive motor might be driven like a regular brushless motor, not a stepper. The 4th wire could be a center tap. Leave the center tap unconnected and use a brushless esc to control the motor and you may have success.

Did a quick search on this forum..

http://forum.arduino.cc/index.php?topic=52751.0

3

I ordered this in the hopes that it will solve some of my problems and I can adapt it to the HDD motor. Not having an actual ESC but a motor shield that seems much more geared toward servos and stepper motors seems to be a major issue