This program was designed to move a step by step motor en proteus with 7 segments lamps and refreshment for the lamps .to move the otor it was designed with a 2 bit system to move each degree it is possible to see the movement of the angle en proteus

51单片机和PC联机的小程序，特别适用于Proteus 7 Professional和Keil uVision4的初学者学习使用，已验证OK-51 microcontroller and PC online applet, especially for Proteus 7 Professional and Keil uVision4 beginners learning to use, has verified OK