STM32F4开发板，同时控制电机和灯带联动，电机不动时灯带处于单色变换模式rainbow模式，电机运动时灯带处于多色流水状态rainbowcycle模式；(STM32F4 development board, at the same time control the motor and light band linkage, when the motor is not moving, the light belt is in the monochromatic mode rainbow mod