查看SKU:RB-02S101 RTC時鐘模塊的源代碼

[[文件:RB02S101011.png|500px|縮略圖|右]]
==產(chǎn)品概述==
產(chǎn)品是一款低功耗，具有56字節(jié)非失性RAM的全BCD碼時鐘日歷實時時鐘模塊，芯片可以提供秒，分，小時等信息，每一個月的天數(shù)能自動調整。并且有閏年補償功能。AM/PM 標志位決定時鐘工作于24小時或12小時模式，芯片有一個內置的電源感應電路，具有掉電檢測和電池切換功能。當單片機斷電情況下，可以通過一個電池讓單片機項目時間保持記錄，完善的數(shù)據(jù)記錄。
==規(guī)格參數(shù)==
# 產(chǎn)品貨號：
# 工作電壓 ：+5v
# 主控芯片：DS1307
# 工作溫度范圍：0°C to +70°C 
# 接口類型：IIC 通信接口
# 固定孔：4個 * M3
# 產(chǎn)品尺寸：45mm * 25mm
==接口定義==
RTC時鐘模塊引腳定義：
* SDA：I2C 數(shù)據(jù)引腳
* SCK：I2C 時鐘引腳
* +：電源(VCC)
* -：地(GND)
==使用方法==
===硬件連接===
[[文件:RB02S10102.png|700px|縮略圖|居中]]
===例子程序===
將下列程序上傳到 Carduino 控制器中
* [http://gharee.com/wiki/index.php/Arduino%E5%85%A5%E9%97%A8%E6%95%99%E7%A8%8B#Arduino.E7.82.B9.E4.BA.AELED.E5.AE.9E.E9.AA.8C 點擊此處 Arduino 入門教程]查看程序上傳方法
* [https://github.com/chenboyang77/RB-02S101_RTC_Module.git 例子程序下載]
將下載到的壓縮文件解壓到到 Arduino IDE 軟件的 libraries 文件中（·····\arduino-1.7.6\libraries），啟動 Arduino IDE 選擇文件 -- 示例 -- RB-02S101_RTC_Module-master -- 打開 example - ds1307 例子程序，上傳到 Arduino UNO 控制器中，就可以實現(xiàn)代碼測試。操作方法下圖所示：<br/>
解壓過程<br/>
[[文件:05L007A10.png|500px|縮略圖|居中]]
[[文件:05L007A11.png|700px|縮略圖|居中]]
<pre style='color:blue'>
// Date and time functions using a DS1307 RTC connected via I2C and Wire lib
#include <Wire.h>
#include "RTClib.h"

#if defined(ARDUINO_ARCH_SAMD)
// for Zero, output on USB Serial console, remove line below if using programming port to program the Zero!
   #define Serial SerialUSB
#endif

RTC_DS1307 rtc;

char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};

void setup () {

#ifndef ESP8266
  while (!Serial); // for Leonardo/Micro/Zero
#endif

  Serial.begin(57600);
  if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }

  if (! rtc.isrunning()) {
    Serial.println("RTC is NOT running!");
    // following line sets the RTC to the date & time this sketch was compiled
    //rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
     rtc.adjust(DateTime(2016, 7, 27, 13, 0, 0));//2016年7月27，13點整
  }
}

void loop () {
    DateTime now = rtc.now();   
    Serial.print(now.year(), DEC);
    Serial.print('/');
    Serial.print(now.month(), DEC);
    Serial.print('/');
    Serial.print(now.day(), DEC);
    Serial.print(" (");
    Serial.print(daysOfTheWeek[now.dayOfTheWeek()]);
    Serial.print(") ");
    Serial.print(now.hour(), DEC);
    Serial.print(':');
    Serial.print(now.minute(), DEC);
    Serial.print(':');
    Serial.print(now.second(), DEC);
    Serial.println();
    delay(3000);
}</pre>

===程序效果===
[[文件:RB02S10103.png|420px|縮略圖|居中]]

==擴展例程==

* 硬件準備
# Carduino UNO R3 控制器 * 1 個
# V5.0 傳感器擴展板 * 1 個
# 四位七段數(shù)碼管 * 1 個
# RTC 時鐘模塊 * 1 個
# 傳感器連接線若干

* 硬件連接
[[文件:RB05L021100.png|600px|縮略圖|居中]]

* 例子程序
可通過選擇示例 - ClockDisplay_now 打開例程，也可以通過復制程序粘貼到 IDE 的編輯界面 <br/>
<pre style='color:blue'>#include <TimerOne.h>
#include "TM1637.h"
#include <Wire.h>
#include "RTClib.h"
#define ON 1
#define OFF 0
#if defined(ARDUINO_ARCH_SAMD)
#define Serial SerialUSB
#endif

RTC_DS1307 rtc;

char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};

int8_t TimeDisp[] = {0x00,0x00,0x00,0x00};
unsigned char ClockPoint = 1;
unsigned char Update;
unsigned char minute = 0;
unsigned char hour = 12;
int stem,val;

#define CLK 5
#define DIO 4
TM1637 tm1637(CLK,DIO);

void setup()
{
  tm1637.set();
  tm1637.init();
  Timer1.initialize(500000);
  Timer1.attachInterrupt(TimingISR);
  #ifndef ESP8266
  while (!Serial); 
  #endif
  Serial.begin(57600);
  if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }
  if (! rtc.isrunning()) {
    Serial.println("RTC is NOT running!");
     rtc.adjust(DateTime(2016, 7, 27, 13, 0, 0));
  }
}
void loop()
{
  DateTime now = rtc.now();  
  if(Update == ON)
  {  
    TimeUpdate();
    tm1637.display(TimeDisp);
  }
    stem = now.hour();
    val = now.minute();
}

void TimingISR()
{
    ClockPoint = (~ClockPoint) & 0x01;
    Update = ON;
}
void TimeUpdate(void)
{
  if(ClockPoint)tm1637.point(POINT_ON);
  else tm1637.point(POINT_OFF);
  TimeDisp[0] = stem/ 10;
  TimeDisp[1] = stem % 10;
  TimeDisp[2] = val / 10;
  TimeDisp[3] = val % 10;
}</pre>

* 程序效果
數(shù)碼管實時電子時鐘。

==產(chǎn)品相關推薦==
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===產(chǎn)品購買地址===
RTC 時鐘模塊<br/>
===周邊產(chǎn)品推薦===
[http://gharee.com/goods-130.html 串行1602液晶顯示模塊]<br/>
[http://gharee.com/goods-45.html 1602液晶擴展板 v2.0 Arduino LCD 1602 Keypad Shield]<br/>
[http://gharee.com/goods-743.html Arduino四位七段數(shù)碼管]<br/>
===相關學習資料===
[http://datasheets.maximintegrated.com/en/ds/DS1307.pdf DS1307 datasheet]