89C51单片机控制两个步进电机 步进电机分为上下两个 上边上下 180度旋转 下边 360度旋转 单片机控制 是太阳能电池板垂直光线-89C51 microcontroller controls two stepper motor stepper motor 180 is divided into upper and lower top and down below the 360-degree rotation is a rotation SCM vertical light solar p