Arduin - Stellarium - Stepper (WITHOUT Encoders) following tutorial (DRV8825)

I'm wouldn't say I'm an expert or a noob, I have a general knowledge of arduino and coding, I currently have a 2 axis rig which is taken from a telescope, it has 2 stepper motors controlling gear drivers to the axis, and the motors are then fed into 2 DRV8825 drivers on a CNC Stepper shield. These are driven using the step and dir pins to provide the number of steps and directions.

I've had this running fine and moves the exact steps I need.

However I am trying to follow a tutorial which allows your 2 axis telescope rig to connect to the windows app Stellarium and track stars. Since this tutorial uses encoders rather than stepper drivers that use DRV8825, I'm quite lost where I could potentially re-place the encoders with DRV8825 driver boards.

I'm more than sure it would be possible, because I trust the steppers to move the exact number of steps given, they don't slip and are very frictionless.

This is the tutorial

I may be wrong in thinking this is the correct area to post this, but if it is could someone gide me to somewhere that I would get more help.

The code is in the tutorial link, I won't post a code snippet as I have not yet changed the code.

But my aim is to intergrate or replace the encoders with DRV8825 stepper drivers for 2 Axis's

The instructable shows how to send LX200 protocol messages to the PC to tell Stellarium where the telescope is pointing. Does the LX200 protocol allow Stellarium to send coordinates to the telescope?