The single-chip controlled stopwatch is an electromechanical high-tech product integrating single-chip technology, analog electronic technology, and digital technology. It has the advantages of low power consumption, high safety, and convenient use. It is a kind of online real-time control computer, which needs strong anti-interference ability and low cost. The content of this design is a stopwatch with 8051 single-chip microcomputer as the core, which adopts digital tube display and single-chip technology control. Using the principle of timer/counter timing and technology of the single-chip microcomputer, the timer is designed with integrated circuit chip, LCD digital tube and buttons. The software and hardware are organically combined to make it have the correct timing, pause, reset, and at the same time it can be displayed with a digital tube, which is widely used in real life.
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