//8563時(shí)鐘模塊、DHT11模塊。

//在LCD上顯示時(shí)鐘和日歷，溫度和濕度。通過確認(rèn)鍵切換顯示內(nèi)容。#include <Rtc Pcf8563.h>

#include <Liquidcrystal.h>

#include"dht11.h”

Rtc_Pcf8563rtc; //定義一個對象rtc

dht11 DHT11;

#define DHT11PIN2 //定義DHT11模塊引腳

//LCD1602 引腳

const intrs=8, en=9, d4= 4, d5= 5，d6= 6，d7=7；//LCD1602引腳

LiquidCrystallcd(rs, en, d4, d5, d6, d7)；

byte day, weekday, month, century, year; //定義日期變量

byte hr, minute, sec； //定義時(shí)間變量

char time_str[16]; //時(shí)間

char data str[16] ; //日歷

char strout [8];

char time_Out[16];

intkey_in = A0; //模擬量按鍵

intkey_v[4]= (0x2D,0x13，0x8，0x00 )；//預(yù)存鍵值

intflag=0; //顯示時(shí)鐘狀態(tài)

intflag1= 0xff; //初始沒有按鍵狀態(tài)

int key; //按鍵

int key1; //防止重鍵

String week[7] ={"Mon","Tue ", "Wed ","Thur", "Fri","sat ", "Sun "};

byte Centigrade[8]={ //定義C顯示符號

? B10000，

? B00110，

? B01001,

? B01000,

? B01000,

? B01001,

? B00110,

? B00000

}；

void setup() {

? lcd.begin(16,2)； //液晶初始化

? lcd.createChar(0, Centigrade); //在地址0創(chuàng)造C字符

? getclock(); //讀取當(dāng)前時(shí)鐘

}

void loop() { //主循環(huán)函數(shù)

? read key();

? if(key != 0)

{

? ? switch (key)(

? ? ? case l: Select(); break; //選擇鍵

? ? ? case 2: Reduce(); break; //增加鍵

? ? ? case3:Increase(); break; //減少鍵

? ? ? case 4: Return(); break; //確認(rèn)鍵

? ? ? ?}

? ? key =0;

}

? if (flag == 0)

? ? time display();

? else if (flag ==1)

? ? temp display();

? else if(flag == 2)

? ? set display();

}

void getclock(){ //讀日歷、時(shí)鐘

? rtc.getDateTime();

? sec = rtc.getSecond();

? minute = rtc.getMinute();

? hr=rtc.getHour();

? day = rtc.getDay();

? month = rtc.getMonth();

? year = rtc.getYear();

? weekday = rtc.getWeekday();

}

voidset display() {//參數(shù)修改狀態(tài)，在相應(yīng)位置光標(biāo)閃爍

? lcd.cursor();

? lcd.blink();

? if (flagl != 0xff) {

? ? switch (flag1) {

? ? case 0: 1cd.setCursor(10,0);lcd.print(sec /10)；lcd.print(sec % 10);1cd.setCursor(11, 0); break;

? ? case 1: 1cd.setCursor(7, 0)；1cd.print(minute / 10); 1cd.print(minute /10);lcd.setCursor(8, 0);break;

? ? case 2: lcd.setCursor(4, 0)；lcd.print(hr /10); lcd.print(hr % 10); 1cd.setCursor(5, 0); break;

? ? case 3: lcd.setCursor(12,1);1cd.print(week[weekday -1]);1cd.setCursor(15,1);break;

? ? case 4:lcd.setCursor(8, 1);lcd.print(day/ 10)；lcd.print(day % 10)；1cd.setCursor(9, 1);break;

? ? case5:lcd.setCursor(5, 1);1cd.print(month /10)；lcd.print(month % 10);lcd.setCursor(6, 1); break;

? ? case6:lcd.setCursor(0,1)；lcd.print("20")；lcd.print(year/10)；lcd.print(year810);lcd.setCursor(3,1); break;

? ? }

? }

}

void time_display() //顯示日歷、時(shí)鐘

{

? lcd.noCursor();

? lcd.noBlink();

? lcd.setCursor(4, 0);

? lcd.print(rtc.formatTime());

? lcd.setCursor(0,1);

? lcd.print(rtc.formatDate(RTCC_DATE_ASIA));

? lcd.setCursor(12,1);

? lcd.print(week[rtc.getWeekday() -1]);

}

void temp_display() { //溫濕度顯示

? DHT11.read(DHT11PIN);

? int temperature = DHT11.temperature; //溫度

? int humidity = DHT11.humidity; //濕度

? lcd.setCursor(4, 0);

? lcd.print("T=");

? lcd.print(temperature);

? lcd.write(byte(0));

? lcd.print("");

? lcd.setCursor(4, 1);

? lcd.print("H=");

? lcd.print(humiditv);

? lcd.print("% ")；

}

void read_key() {? //讀按鍵

? int key_Value = analogRead(A0) >> 4;? //讀取AD高8位

? if(key Value != 0x3f) {? ? ? ? ? ? ? ? //無鍵按下時(shí)鍵值是0x3f

? ? delay(120);

? ? key Value = analogRead(key_in) >> 4;

? ? if(key_Value != 0x3f) {

? ? ? for (int i= 0; i < 4; i++) {

if (key_Value >= key_v[i] -1 && key_Value <= key_v[i]+ 1) //取一個范圍

? ? ? ? ? ? key=i +1; //鍵值從1開始?

? ? ? }

? ? }

? ? if (key1 != key) //防止連鍵

? ? ? keyl = key;

? ? else

? ? ? key=0；

? }

}

void Select() { //參數(shù)修改鍵

? getclock()；

? rtc.setDateTime (day, weekday, month, 0, year, hr, minute, sec);?

? if (flag == 1) {

? ? flag = 0;

? ? }

? else? {

? ? flag=2;

? ? if? (flag1==0xff)

? ? ? flaq1= 0;

? ? elseif (flag1 < 6){

? ? ? flag1 +=1;

? ? ? rtc.setDateTime(day, weekday, month, 0, year, hr, minute, sec);

? ? }

? ? else flagl=0；

? }

}

void Reduce() { //減少鍵

? if (flag1 ！=0xff) {

? ? switch (flag1) {

? ? ? case 0: if(sec == 0) sec = 59; else sec -= 1; break;

? ? ? case l: if(minute==0) minute = 59; else minute -= 1; break;

? ? ? case 2: if(hr== 0) hr=23; else hr -= 1; break;

? ? ? case 3: if (weekday==1) weekday =7; else weekday -= 1;break;

? ? ? case 4: if (day==1) day = 31;else day -= 1; break;

? ? ? case 5: if(month == 1) month = 12;else month -= 1; break;

? ? ? case 6: if(year == 0) year = 99;else year -= 1; break;

? ? }

? ? rtc.setDateTime (day, weekday, month, 0, year, hr, minute, sec);

? ? }

}

void Increase() {//增加鍵

? if (flag1！=0xff) {

? ? switch(flag1) {

? ? ? case 0: if (sec == 59) sec =0; else sec += 1; break;

? ? ? case 1：if (minute ==59) minute = 0; else minute += 1; break;

? ? ? case 2：if (hr == 23) hr=0; else hr +=1；break;

? ? ? case 3: if (weekday ==7) weekday = 1; else weekday += 1;break;

? ? ? case 4：if (day ==31) day =1;else day += 1; break;

? ? ? case 5: if (month == 12)month = 1; else month += 1; break;

? ? ? case 6: if (year == 99) year = 0; else year += 1; break;

? ? }

? ? rtc.setDateTime(day, weekday, month, 0, year, hr, minute, sec);一

? }

}

void Return() {//確認(rèn)鍵

? if (flag1 != Oxff) {

? ? rtc.setDateTime (day, weekday, month, 0, year, hr, minute, sec);

? ? flagl = 0xff;

? ? flag = 0;

? }

? else {

? ? flag =!flag;

? ? lcd.clear();

? ? flagl=0xff;

? }

}