"基于AT89C51单片机的简易计算器设计及实现"

The development of technology based on microcontrollers has been rapidly advancing in recent years, with applications in various aspects of our daily lives such as electronics, communications, science, and industry. One common electronic device that is frequently used is the calculator. In order to improve the maturity and simplicity of calculator technology, it is important to utilize existing hardware and software resources effectively to design a more user-friendly calculator. This design focuses on the use of the AT89C51 single-chip microcontroller as the core of a simple calculator. The input method involves a 4*4 matrix keyboard, allowing for addition, subtraction, multiplication, and division of signed eight-digit integers. The operations and results are displayed statically on an LCD1602 screen. The software for this design is programmed in C language, using Keil uVision2 and Preteus for simulation. In conclusion, this project demonstrates a practical and efficient approach to designing a simple calculator using a microcontroller. By leveraging the capabilities of the AT89C51 single-chip microcontroller and integrating a user-friendly interface with a matrix keyboard and LCD display, this design provides a convenient and easily accessible tool for performing basic arithmetic operations. The use of C programming language and simulation software ensures the reliability and functionality of the calculator, making it a valuable addition to electronic devices in our daily lives.