Controlled Rotation of the Shaft of a Stepper Motor with 8051 Microcontroller
Journal Title: International Journal of Engineering and Science Invention - Year 2017, Vol 6, Issue 4
Abstract
With a view to control the direction, speed, angle of rotation and Bidirectional rotation of the shaft of a stepper motor, the stepper motor was interfaced with 8051 microcontroller through 8255 PPI ports and rotating the shaft by supplying the required data by executing 8051 assembly language programs. The Hexadecimal data 07, 0B, 0D and 0E was given as inputs of stepper motor through amplifiers to rotate the shaft in a clock wise direction, while 07, 0E, 0D and 0B was given through the amplifiers to produce opposite magnetic poles to rotate the shaft of a stepper motor in an anti clock wise direction. The speed was controlled by setting different values of the registers used in the delay subroutine. The lesser values of delay registers will increase the speed of the shaft of the stepper motor. To rotate the shaft of a stepper motor with a specified angle, a separate register was used to supply the above datas for required times to produce the suitable angle. An effort were made to rotate the shaft of the motor in both clock wise and anti clock wise alternatively with a specific angle by combining the assembly language programs of both clock wise and anti clock wise direction rotations at one place with an appropriate count value.
Authors and Affiliations
Dr. D. Chinni Krishna
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