I have a 17HS13-0404S Stepper motor, driven by a L293D IC, powered by a 12v 1.0Amp PSU. The stepper motor is running just as I would like it to. I have noticed however that the motor is hot to the touch when it is idle. Is this normal, and if not what should I look for?
I think I resolved it. I had 12v going to pin 16 on the L293d. I changed to 5v, and now the motor is no longer hot to the touch.
You would definitely expect a stepper to be hot to the touch when stationary and holding position.