串口通信资源
#include <DS3231.h>
#include <Wire.h>
DS3231 Clock;
bool Century=false;
bool h12;
bool PM;
byte ADay, AHour, AMinute, ASecond, ABits;
bool ADy, A12h, Apm;
int year, month, date, DoW,week , hour, minute, second,temperature;
String comdata = "";
int numdata[7] = {0}, mark = 0;