First of all, I’m a just beginner, so if I’m asking something too obvious to you. Please forgive me.
I bought a Arduino kit few days ago, and played around with it. Step motors are particularly
interesting to me because I have a Arduino tool in my home (a Makerbot to be precise).
When I played with the step motors came with the kit, I found the the step motor is heating up even it is not moving, which is probably consuming quite a amount of energy. So, I insert a relay to the step motor circuit, and turn it on/off on demand. It works perfectly.
I’m just wondering. If I use a transistor to do the same job, am I still going to save some power? By the way, what is the usual way to achieve power saving for step motors with Arduino?