Quantity   Component name
1 × 3D-printed TinyLev
1 × Arduino Nano with mini USB cable
1 × Some Exposed wire
72 × 10mm 40kHz transducers
1 × L298N Dual Motor Drive Board
1 × DC power adaptor 9V
1 × Power switch
1 × DC female connector(5.5 X2.1mm)
3 × Button
1 × Some Jumper wires