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//#########################################
/* 接口定義
CE(DS1302 pin5) -> D5
IO(DS1302 pin6) -> D6
SCLK(DS1302 pin7) -> D7
*/
//################################
#include <stdio.h>
#include <string.h>
#include <DS1302.h>
#include <DallasTemperature.h> // DS18B20 庫
#include <LiquidCrystal_I2C.h> // I2C 1602
#include <Wire.h> // I2C 庫
#include <OneWire.h>
#define ONE_WIRE_BUS 10 // DS18B20 連接arduino D10引腳
// 初始連接在單總線上的單總線設(shè)備
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
LiquidCrystal_I2C lcd(0x27,16,2); //設(shè)置LCD1602的I2C地址為0x27
uint8_t CE_PIN = 5;
uint8_t IO_PIN = 6;
uint8_t SCLK_PIN = 7;
byte nian[8] =
{
0b01000,
0b01111,
0b10010,
0b01111,
0b01010,
0b11111,
0b00010,
0b00000
};
byte yue[8] =
{
0b01111,
0b01001,
0b01111,
0b01001,
0b01111,
0b01001,
0b10011,
0b00000,
};
byte ri[8] =
{
0b11111,
0b10001,
0b10001,
0b11111,
0b10001,
0b10001,
0b11111,
0b00000
};
byte temp[8]=
{
0b10000,
0b01111,
0b01000,
0b01000,
0b01000,
0b01000,
0b01111,
0b00000, //溫度標(biāo)志— —攝氏度
};
// 日期變量緩存
char buf[50];
char day[10];
// 串口數(shù)據(jù)緩存
String comdata = "" ;
int numdata[7] = {0}, j = 0, mark = 0;
// 創(chuàng)建 DS1302 對象
DS1302 rtc(CE_PIN, IO_PIN, SCLK_PIN);
Time t;
void print_time()
{
// 從 DS1302 獲取當(dāng)前時間
t = rtc.time();
// 將星期從數(shù)字轉(zhuǎn)換為名稱
memset(day, 0, sizeof(day));
switch (t.day)
{
case 7:
strcpy(day, "Sunday");
break;
case 1:
strcpy(day, "Monday");
break;
case 2:
strcpy(day, "Tuesday");
break;
case 3:
strcpy(day, "Wednesday");
break;
case 4:
strcpy(day, "Thursday");
break;
case 5:
strcpy(day, "Friday");
break;
case 6:
strcpy(day, "Saturday");
break;
}
// 將日期代碼格式化湊成buf等待輸出
snprintf(buf, sizeof(buf), "%s %04d-%02d-%02d %02d:%02d:%02d", day, t.yr, t.mon, t.date, t.hr, t.min, t.sec);
// 輸出日期到串口
Serial.println(buf);
}
void setup()
{
Serial.begin(9600);
Serial.println("Temperature Project");
rtc.write_protect(false);
rtc.halt(false);
lcd.init(); // 給LCD的I2C通訊初始化,需要執(zhí)行兩次
delay(20);
lcd.init(); // 給LCD的I2C通訊初始化
delay(20);
lcd.backlight();//點亮LCD背光燈
rtc.write_protect(false);
rtc.halt(false);
lcd.begin(16, 2);
lcd.createChar(0, nian);
lcd.createChar(1, yue);
lcd.createChar(2, ri);
lcd.createChar(3, temp);
}
void loop()
{
// 當(dāng)串口有數(shù)據(jù)的時候，將數(shù)據(jù)拼接到變量comdata
Serial.print("Requesting temperatures..."); // 串口發(fā)送字符
sensors.requestTemperatures(); // 傳感器發(fā)送命令獲取溫度
Serial.println("DONE"); // 串口發(fā)送字符并換行
Serial.print("Temperature for the device 1 (index 0) is: ");
Serial.println(sensors.getTempCByIndex(0));
while (Serial.available() > 0)
{
comdata += char(Serial.read());
delay(2);
mark = 1;
}
//以逗號分隔分解comdata的字符串，分解結(jié)果變成轉(zhuǎn)換成數(shù)字到numdata[]數(shù)組
if (mark == 1)
{
Serial.print("You inputed : ");
Serial.println(comdata);
t.yr = (comdata[0] - '0') * 1000 + (comdata[1] - '0')*100 + (comdata[2] - '0') * 10 + (comdata[3] - '0'); //year
t.mon = (comdata[4] - '0') * 10 + (comdata[5] - '0'); //month
t.date = (comdata[6] - '0') * 10 + (comdata[7] - '0'); //date
t.hr = (comdata[8] - '0') * 10 + (comdata[9] - '0'); //hour
t.min = (comdata[10] - '0') * 10 + (comdata[11] - '0'); //minute
t.sec = (comdata[12] - '0') * 10 + (comdata[13] - '0'); //second
t.day = (comdata[14] - '0') * 10 + (comdata[15] - '0'); //week
// 將轉(zhuǎn)換好的numdata湊成時間格式，寫入DS1302
rtc.time(t);
mark = 0;
j = 0;//清空 comdata 變量，以便等待下一次輸入
comdata = String("");// 清空 numdata
for (int i = 0; i < 7 ; i++) numdata = 0;
}
//打印當(dāng)前時間
print_time();
lcd.setCursor(0, 0);
lcd.print(t.yr);
lcd.write(byte(0));
lcd.print(t.mon);
lcd.write(byte(1));
lcd.print(t.date);
lcd.write(byte(2));
lcd.print(" ");
lcd.setCursor(15, 0);
lcd.print(t.day);
lcd.setCursor(0, 1);
lcd.print(t.hr);
lcd.print(':');
lcd.print(t.min);
lcd.print(':');
lcd.print(t.sec);
lcd.print(" ");
lcd.setCursor(10, 1); // 定位光標(biāo)到第二行靠中位置
lcd.print(sensors.getTempCByIndex(0)); // 顯示溫度值，來源DallasTemperature.h的函數(shù)
lcd.write(byte(3)); // 不定位光標(biāo)則繼續(xù)前面語句繼續(xù)寫字符
delay(1000);
}

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