"基于单片机的多功能数字时钟设计与实现"

gh places, which makes it inconvenient to set the time. This design uses manual button operation for time adjustment and timing functions, making it more convenient to use and with a broader application prospect. The system circuit consists of clock module, main control module, keyboard and display module, and power supply module. The real-time clock uses DS1302 to collect time information such as year, month, day, hour, minute, second, and week, as well as alarm function. This design results in a very simple circuit structure, fully meeting various requirements and improving the stability of the system circuit. In addition, it uses C language to program the various functional modules of the system, and the system has keyboard control function, making it easier to adjust the time. Keywords: STC89C52 microcontroller, electronic alarm clock, DS1302 Overall, the design of a multifunctional digital clock based on a microcontroller provides a convenient and user-friendly solution for timekeeping needs. By utilizing manual button operation for time adjustment and timing functions, it offers a more practical and versatile approach compared to traditional electric clocks. The system circuit, consisting of clock module, main control module, keyboard and display module, and power supply module, ensures the stability and efficiency of the clock. The real-time clock functionality using DS1302 enables accurate timekeeping and alarm features. Additionally, the programming of the system using C language and the inclusion of keyboard control further enhance the functionality and usability of the clock. With the use of advanced technology and thoughtful design, this multifunctional digital clock serves as a reliable and practical tool for time management in various settings.