Quantity   Component name
1 × Micro:Bit v2 Main Controller
1 × Adafruit CRICKIT for micro:bit
1 × PLA or PETG printing filament
1 × Clear dome Diameter 3.94 inch with flange
2 × TT Motor Bi-Metal Gearbox - 1:90 Gear Ratio
2 × Skinny Wheel for TT DC Gearbox Motors
1 × UBEC DC/DC Step-Down (Buck) Converter - 5V @ 3A output
1 × 16mm Height Metal Caster Bearing Wheel
1 × Metal toggle switch Main power switch
1 × RCW-0001 - ultrasonic distance sensor 4.5 m main distance sensor
1 × 6x battery AA holder
6 × AA rechargeable battery
1 × Misc Capacitors for motor current spikes
1 × Misc hookup wire
4 × 100mm aluminum Stand-off