This is autoadjuster, a small tool supposed to allow you test and adjust your astrotracker indoor.
First, you have to know the pixel scale (AKA image scale) for you camera + objective lens. You can calculate it based on known focal length of your lens and size of a single pixel on your camera's sensor. Pixel scale is in this case just ps=atan(pixel size / focal length). Please make sure you are using same dimensions (like mm). You can use online calculator too, I just asked google for "image scale calculator" and found http://celestialwonders.com/tools/imageScaleCalc.html
You can get your image scale more precisely by using http://nova.astrometry.net. You do upload one of your astro fotos made with camera and lens you supposed to use with this script. Then go to caliblation results and search for a pixel scale value.
With known pixel scale open this script in text editor and change the value of variable pixelScaleInArcsecPerPixel to your value.
Then you put a camera on your astrotracker, start it and do shots every let say 10 seconds. Delay between shots should not be exact as script will read the time from EXIF-information in pictures.
Your camera should be positioned perpendicular to the axis of rotation.
After some minutes of shots, copy pictures from camera to the PC and run a script with a full path to the directory with pictures as a first command line argument, like "python autoadjuster.py /home/test/astrostacker_pictures/"
On Windows
Install opencv:
choco install opencv
--> opencv 3.4.0
Install numpy:
pip install numpy
--> numpy 1.14.0
Install pillow:
pip install pillow
--> pillow 5.0.0