i got some old hdd motor, but i dont know how to make it start thru arduino?
you got any sample codes for it? i just wanna know how you make it work regardless of what brand of the HDD is.. thanks.
You will need a motor driver. The Arduino cannot be used to power or run motors directly.
jremington:
You will need a motor driver. The Arduino cannot be used to power or run motors directly.
i there a brand or components to be made for a motor driver?
Yes, of course. There is one in the original HDD, specifically for that motor.
There are other motor drivers that would work, but you will need to identify the motor first.
try Googling "driving HDD motor"
HDD motors are usually 3-phase brushless motors in a wye-formation with the centre-tap brought
out (so 4 terminals). This allows driving unipolar if you want, like a 3-phase stepper, which is
probably the easiest way to drive it (although sinusoidal 3-phase driving would be the most
effcicient way).
3 channels of an ULN2803 or ULN2003 would be one possible way to drive unipolar (those
chips have built-in free-wheel diodes too which saves on components).