Description: Digital clock function with a single chip. 1 pm- hours- seconds (2-2-2 bit bit) display, the keyboard into a time value 2, can be controlled via buttons on the LED scroll from right to left on _ day of _ 3 3, to achieve a daily reminder alarm feature, set the alarm time can be key. Said with a tone alarm 4, to achieve a stopwatch function 5, Design and Implementation of tone alarm beep tone or music.
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zhouxin22.c
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