I want to create a circuit that will allow me to conveniently control a 3V electric motor - specifically I want to be able to control how fast it rotates and in which direction.
From usability perspective I thought that a knob would be nice. I have very little idea about electronics but a potentiometer came to my mind as a convenient element that already has a knob that I could use as the control knob. I then did some reading/listening about transistors - and it seems I can use them (n-p-n, specifically) to complete my circuit.
I am asking you to advise me whether this is a reasonable approach. I still need to define specific values of the resistors/potentiometer but before I do that I would like to make sure I am not doing something inherently silly.
** Edit **
@Kyle, thank you but that example does not work for me - it uses 2 input components: a switch and a potentiometer if I understand correctly, and I would like to use just a single knob. However, I am now learning about MOSFEDs, since they look like something I might want to prefer here.