基于89C52单片机的键盘控制步进电机,可以实现步进电机正转反转，加速。需要自配变压器及细分驱动器。-Based on the 89C52 microcontroller keyboard to control the stepper motor, stepper motors reverse, speed up. Need to be self-made transformer and subdivision driver.

离散点集生成等值线的算法实现涉及四个方面：离散点三角形剖分建立不规则三角网（D-TIN）、基于D-TIN内插生成等值点集合，开闭两类等高线同时绘制，等值线适度光滑和标注。（VS2010+AE10+C#）-Discrete point set to generate contour algorithm involves four aspects: establish discrete points triangular subdivision of irregular triangle net (