μ -Stepper motor controller

Today i found one of my old projects, actually experimenting stuffs. This is thing is a stepper motor controller. I think many people out there knows whats Stepper Motors are and how it works. Usually this type of motors are in printers and photocopy machines..etc. Actually the circuit i made was to interface a stepper motor to an micro controller IC so i can write a code to turn the motor to different degree and so.. usually this type of applications are used in Robots.
Before i wrote the operating code from assembly language and now i have changed it to C language and its simple and easily understandable for anyone. Hopefully some one will built a robot soon. ;)
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