Stellarium, telescope control plugin and azimuth grid - how to make friends with all this?

Question

Arduino

Greetings. I wanted to make Arduino friends with the Stellarium program. Namely, emulate a connected telescope via a Serial connection. I started to study the protocols that the stellarium plugin supports, but it did not work out to position the cursor on the azimuth grid, the point is drawn only on the coordinates of the equatorial grid. And I need it in azimuth, that is, relative to the horizon, according to the location coordinates specified in the program.
How to be? Where to dig?
PS I do not want to shove the formula for converting coordinates into the dunya. Since this requires time / date / geo-coordinates to be set by a separate interface.