Quantity   Component name
4 × Raspberry Pi Zero
4 × Raspberry Pi Camera
1 × LED Light ring 25cm diameter
1 × Power supply 56x84mm 220-12V 2-5A
1 × 12V-5V Step down buck converter
1 × NEMA 17 Bipolar Stepper motor 42x42x57mm
1 × L298N Controler for Stepper
1 × 683ZZ 3x7x3mm Ball Bearings