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stepper motor interface with 8051

gyanchand mohanty

hi,
I am working with a project that is stepper motor controlled with 8085 or 8051.I have 2 stepper motor which i have collected from printer.One stepper motor is having 4 pin another is having 5 pin.I cant understand the pin description.One is MITSUMI (M42SP-4NP) QH4-4240 ,11 ohm .Another is MITSUMI (M42SP-7P) QH4-4244 ,54.5 ohm.Please anyone help me on this project.

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