A bit of a lash up for testing. This is the dome rotation motor driver board. Basically it has a 12 to 24 volt step-up converter for the Leadshine M542 stepper driver, a 12 to 8 volt down converter - power to Arduino boards, a 12 volt to 5 volt converter for sensor power and an Arduino Nano running the motor driver routines. These are based around using Accelstep and the video shows the nice smooth acceleration and deceleration. There is also another board that will have an Arduino Mega to control the Safety Monitor and a Vellesman board for use with LesveDome dome control software.