My question is about the automation of single phase AC motors.
I am aware that I can purchase TRIAC controllers with manual knobs or even 0-10V control inputs.
I am new to the world of AC controllers so I would like to know if there are many other kinds of controllers with different control inputs. If so which is the most suitable for automating with an output from an Arduino?
Ideally I would like to obtain a controller without the need for 'hacking'. If that is necessary are most of the 'knobs' to adjust AC speed controllers just a potentiometer?