文件名称:led_key_beep
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- 上传时间:2012-11-16
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文件大小:1.6kb
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输入四路独立按键,输出四路独立LED和一个蜂鸣器。按下按键,对应的LED变量,同时蜂鸣器响,松开按键,对应的LED灭,蜂鸣器不响。蜂鸣器的功能是用四输入与门完成。这个四路很重要,整个电路扩展性很好。-Independent keys of the input four output four separate LED and a buzzer. Key is pressed, the corresponding LED variable, while the buzzer sounds, release the button, the corresponding LED off, does not sound buzzer. Buzzer function is to complete the four-input AND gate. This quad is very important, very good scalability of the entire circuit.
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led_key_beep.bsf
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