stepper motor

zeyad · Joined: 24 Feb 2015 Posts: 22

i want to drive a stepper motor clock wise 200 steps using pic 16f877a . need help?

temtronic · Posted: Thu Feb 26, 2015 11:18 am

You'll ned to supply us with the motor specs, interface used between PIC and motor.

As a start, confirm your basic hardware by getting a '1Hz LED' program to run properly.

Check the examples folder...may be a 'stepper' program in there.

BTW the 877 is almost obsolete, I strongly suggest you buy a newer, cheaper more powerful PIC.
Jay

zeyad · Joined: 24 Feb 2015 Posts: 22

zeyad · Joined: 24 Feb 2015 Posts: 22

Ttelmah · Joined: 11 Mar 2010 Posts: 19326

The key function is drive_stepper. Just drives four bits for a unipolar stepper, at a specified speed for a number of steps.
The code can't be much simpler, in fact any serious use of a stepper will be much more complex implementing acceleration and deceleration profiles etc.. However at slow speed this will work.