Ok, I am having a slight problems controlling a fan with PWM. I am using the schematic and program from here http://itp.nyu.edu/physcomp/Tutorials/HighCurrentLoads, but at any signal from 0 to 254 it will not run, only at 255 will it run. One thing that I am wondering is, the fan is a brush-less fan, would that make a difference?
Well, there is no way to run brushless according to this tutorial...
that is what I was thinking, have to find a regular fan and give it a try.
Were you able to control the brushless motor using DC with different voltages (i.e. from 5V to 12V) and does the voltage change affect the motor speed? If so, you should be able to control it via PWM output.
you need extra hardware to run brushless motors