Quantity   Component name
1 × ESP-32D S should also work but why bother
1 × RS485→ UART breakdown board for communication from ESP to computer
1 × RS485→USB for communication from computer to ESP
1 × 10 meter long cable with 2 wires for RS485 Ethernet cable works fine
1 × 3D printer w/ filament of your favourite colour
6 × A2212 930kV BLDC motor
18 × 400-100 mm wires for connecting the BLDC motor to ESC
6 × BLHeli ESC
1 × 80mmx400 mm PVC pipe
7 × rubber ring for closing up the cap of the PCV pipe
24 × M4 screws and bolds 15 is bare minimum
1 × 12V power source for ESC, motors 9x18650 battery cell recommended
1 × Battery management unit optional
1 × 3.3V power source for internal logic; ESP buck converter from 12V power source recommended
1 × 10 mm strain relief for every outbound cable
1 × FT2232H like the ESP-PROG for programming Optionally but highly recommended