WAP interface the stepper motor with 8051 micro controller

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Program to interface the stepper motor with 8051 micro controller

Stepper motor is one of the commonly used motors for precise angular movement.
The advantage of a stepper motor is that the angular position of the motor can be controlled by without any feedback mechanism.

Stepper motor are widely used in industrial and commercial applications .

They are also commonly used as in driver systems of autonomous robots.

The micro controller is programmed to rotate the stepper in full step modes.

For a bipolar stepper motor , in the full step mode both the phases are energized simultaneously .

The coils A,B,C,D re-energized  in the following  order.

The operating voltage of a stepper motor is in the range of SV to 24V hence ULNZ803 a stepper motor driver IC which is available of the shelf is used to interface the stepper motor to the micro controller.

     Step
 Coil A
 Coil B
 Coil c
 Coil D
    1
  H
   L
  L
  H
    2
  H
   H
  L
  L
    3
  L
   H
  H
  L
    4
  L
   L
  H
  H

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