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LCD
- 在单片机的P1端口上接有LCD模块,用来显示计时时间。P3.3、P3.4端口分别接有按钮开关K1、K2,做秒表的计时控制按钮。-P1 port in the microcontroller connected with LCD module, used to display time of time. P3.3, P3.4 port were connected with the button switch K1, K2, do stopwatch timing control buttons.