its ardinu project it is mini robot.

基于arduino pro mini和mpu6050的迷你四轴原理图和PCB，本设计采用模块化，省去了难度较高的芯片焊接。-Based on arduino pro mini and mpu6050 small four-axis schematic and PCB, the design of modular, eliminating the need for more difficult chip welding.

DSP2812的原理图,大家可以参考一下,设计原理图时有用(DSP2812's schematic diagram, you can refer to the design of the schematic useful)