电机类单片机程序这是容易忽视的问题，然而掌握步进电机是一个非常重要的技术，灵活运用再结合算法可以做出非常优秀的作品。-Motor type microcontroller program is easy to overlook the problem, however, the stepper motor control is a very important technology, flexible use of combined algorithm can make very good wo