david rob wrote:
-------------------------------

i am doing a project where i have to rotate a stepper motor for 180 deg. both clockwise and anticlockwise.

This is clear

As i will be sweeping through i need to count the step value and keep sending it to the computer through serial communication.

Define "computer"... Your microcontroller? Another microcontroller?

Define "step value", define stepping speed, serial communication speed...


i also have to send the direction data to the computer.

How do you define "direction data"???


Could u please help me with this.


Yes we can. What have you tried sofar?


In my code i am finding that the delay generated is varying each time.


What do you mean by delay?
Who or what generates the delay?


Regards
Patrick