Quantity   Component name
1 × UNO
2 × DRV8825 Stepper Driver or similar
6 × 470 ohm resistor Current limiting for LED's
6 × LED Fiber Optics / Emitters
2 × 100 uF capacitor To be used with the stepper drivers
2 × 10K ohm potentiometer Whatever I had in the parts bin at the time of build
1 × Stepper motor Stepper motors don't need to be anything powerful for the load