Description: Calendar clock by K1, enter the state by setting k2, to stop the alarm sound by k3, in order to enter the alarm clock feature is enabled, when the alarm clock, every minute, year, month, day and time, minute and second settings, until the exit status set by k4, whether to adjust and regulate the use of alarm clock alarm clock hour, minute, second, year, month, day, time, hour, minute, second the number of
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lcd_clock.c
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