Introduction - If you have any usage issues, please Google them yourself
This design mainly uses the MCU AT89C51 as the core component, uses 3 sets of 4 bit common anode digital tube as the display piece, C language as the programming language, and simulates under the software simulation platform built by Protues and Keil. This design contains the smallest system structure of the AT89C51 series single chip microcomputer. At the same time, some useful peripheral interfaces are extended on this basis. One step to understand the application of the decoder 74LS247, the structure and working principle of the LED seven segment digital tube, mainly realizes the timing and display of the score of the A/B team, and can carry out the functions of adding points, subtraction, whistle warning and so on in time.
After the completion of the system design, it should be characterized by low cost, stable performance, high accuracy display, convenient operation and easy portability.