The motor power lines have some interesting (read: completely mismatched) color coordination going on—fixers take note.

Here's what we found on a quick tour of the main board:

GigaDevice GD32F103 ARM Cortex-M3

Six half-H bridge motor drivers, made up of two large MOSFETs each

Changjiang Electronics Technology Co., LTD CJ78M05 0.5A/5V voltage regulator

Two pairs of 0.007 ohm resistors by the power inlet (R007).