hi guys! i m new one here .i m undergraduate student. i have learned c++ a bit and given a project to control the speed of a fan using stepup motor via parrallel ports.plz do help me and give me the simple code in c++ for this project.

 

If by "stepup" you mean "stepper" motor, it won't move a lot of air. Most can do 5000 steps/sec, but it takes 200 steps/revolution.

You may find it works better to have a driving circuit in place. The speed control is the pulse frequency from the port.

Writing code helps you learn.