Description: Digital clocks are the most common and widely used in daily life. This paper mainly designs a digital clock clock, which is the core of AT89C51 single chip microcomputer, and four functions, such as function design of digital tube display module and light touch switch. This digital electronic clock USES the 24-hour system to display the functions of time and week, as well as the display of the day and the day, and also has the function of alarm clock, timing and stopwatch.
The core of this article is mainly from hardware design and software programming. Hardware circuit design mainly includes single chip microcomputer, key, digital tube display, power supply and other parts. Software assembles language to implement, mainly including main program, display subroutine, clock subroutine, timing subroutine, stopwatch subroutine and other software modules.
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