More or less an unfinished project to convert at dobsonian telescope to GOTO based on the OnStep Telescope Mount Goto Controller. Link to OnStep website is here
https://onstep.groups.io/g/main
All parts were purchased and consists of
-PLM Series Planetary Gearbox Gear Ratio 20:1 Backlash 30 arc-min for Nema 17 Stepper
-NEMA 17 Stepper Motor 400 steps/0.9Degree resolution.
-WeMos D1 R32 (ESP32) Development Board
-CNC Shield – No Drivers
-Stepper Motor Driver – Ultra Quiet LV8729
-Lenovo Tab M7
Plus drivetrain parts and other bits
Setup is fully functional and preform GOTO function as described on OnStep homepage. Whole setup is controlled wirelessly via the Lenovo Tab M7.
I think it cost me all up, $900 plus. I will be happy to sell the lot for $400 or nearest offer.