"基于AT89C51的自动售货控制系统设计与实现"

The design of an automatic vending control system based on the AT89C51 microcontroller is presented in this document. The paper discusses the background of the implementation plan, the selection of various components, the division of system modules, and the realization of functions. The system is divided into clear modules and adopts keypad input for user-friendly interaction. Developed using the C language, the code is easy to read and understand. The development environment utilizes Keil and Proteus, with Keil for writing, modifying, and compiling the code, and Proteus for simulating the compiled code on simulation devices. This combination enhances development efficiency. The system ultimately achieves functions such as selecting items, displaying coin input, displaying coin return, and showing item dispensing. Keywords: AT89C51, vending machine, Proteus.