Quantity   Component name
1 × Arduino Nano
1 × Li-ion 18650 Li-ion battery 3.7V 2200mA
1 × DC-DC booster from 3V to XL6009
1 × GT2 timing belt GT2 10 mm width belt
1 × Rotary Encoder
12 × Resistor 220 Om
1 × Battery Protection Charger Module Micro USB 5V 1A 18650 TP4056
1 × Pushbutton
1 × Switch Development Kits, Boards and Systems / Development Kits and Boards
1 × Wires
6 × DC Power Relay SRD-12VDC-SL-C
6 × Transistor NPN PN2N2222A TO-92
2 × Micro SD-card Module SPI Module
1 × SD-card
1 × DFPlayer Mini MP3 Module Arduino MP3-TF-16P
1 × Speaker 8 Om, 0.5 W
20 × M3 Bolts and Nuts
1 × Filament for 3D-printer Pet-G of PLA