MCU is now widely used in the each field of our life, the embedded system with MCU as the core has widely applied to many fields。This article is about the design of Teacher Calling Machine System, which is applied in the area of calling-control and is manipulated by AT89S51.
This project has designed a intellectual teacher calling system based on the ISD4004, which can be used in the multimedia teaching,rollcall of the whole class can use two ways,one is automatically calling, another one is randomly calling. With the help of Teacher Calling Machine, time will be saved and efficiency will be raised.