標(biāo)題: arduino電子鐘程序 [打印本頁] 作者: dapengr 時(shí)間: 2016-12-17 14:49 標(biāo)題: arduino電子鐘程序 /* * LCD RS pin to digital pin 12
* LCD Enable pin to digital pin 11
* LCD D4 pin to digital pin 5
* LCD D5 pin to digital pin 4
* LCD D6 pin to digital pin 3
* LCD D7 pin to digital pin 2
* LCD R/W pin to ground
* LCD VSS pin to ground
* LCD VCC pin to 5V */
#include <LiquidCrystal.h> //LCD1602顯示頭文件
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
unsigned long seconds;
int s = 0, m = 0, h = 0, d = 0, mon = 0, y = 0; //時(shí)間進(jìn)位
int second = 0, minute = 0, hour = 0, day = 0, month = 0, year = 0; //當(dāng)前時(shí)間
int SECOND = 0, MINUTE = 0, HOUR = 0, DAY = 0, MONTH = 0, YEAR = 0; //初始時(shí)間
void setup()
{
lcd.begin(16, 2);
lcd.setCursor(2, 1); lcd.print(":");
lcd.setCursor(5, 1); lcd.print(":");
lcd.setCursor(4, 0); lcd.print('-');
lcd.setCursor(7, 0); lcd.print('-');
for(int i = 2;i <= 13; i++)
{
pinMode(i,OUTPUT);
}
set(2015,5,15,22,19,32); //設(shè)置初始時(shí)間
}
void FormatDisplay(int col, int row,int num) //格式化輸出
{
lcd.setCursor(col, row);
if(num < 10) lcd.print("0");
lcd.print(num);
}
void time() //計(jì)算時(shí)間
{
second = ( SECOND + seconds ) % 60; //計(jì)算秒
m = ( SECOND + seconds ) / 60; //分鐘進(jìn)位
FormatDisplay(6,1,second);
minute = ( MINUTE + m ) % 60; //計(jì)算分鐘
h = ( MINUTE + m ) / 60; //小時(shí)進(jìn)位
FormatDisplay(3,1,minute);
hour = ( HOUR + h ) % 24; //計(jì)算小時(shí)
d = ( HOUR + h ) / 24; //天數(shù)進(jìn)位
FormatDisplay(0,1,hour);
}
int Days(int year, int month) //根據(jù)年月計(jì)算當(dāng)月天數(shù)
{
int days = 0;
if (month != 2)
{
switch (month)
{
case 1: case 3: case 5: case 7: case 8: case 10: case 12: days = 31; break;
case 4: case 6: case 9: case 11: days = 30; break;
}
}
else //閏年
{
if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0) days = 29;
else days = 28;
}
return days;
}
void Day() //計(jì)算當(dāng)月天數(shù)
{
int days = Days(year,month);
int days_up;
if( month == 1 ) days_up = Days( year - 1, 12 );
else days_up = Days( year, month - 1 );
day = ( DAY + d ) % days;
if( day == 0 ) day = days;
if( ( DAY + d ) == days + 1 )
{
DAY -= days;
mon++;
}
if(( DAY + d ) == 0)
{
DAY += days_up;
mon--;
}
FormatDisplay(8,0,day);
}