Thank you so much, everything worked out! I figured out how to write drivers and how INDI interacts with Arduino thanks to you! I wrote my own firmware for Arduino, because the algorithm of the roof is slightly different for me. Now, one of these days I will install the telescope parking sensors, limit switches for the roof position and I will install all of this. The main thing is that now everyone is working. Thank! When I finish, I'll post the photos and show the result.