Tiny RTC 时钟模块用法求助

Safari◢

1. #include <WProgram.h>
   
2. #include <Wire.h>
   
3. #include <DS1307.h>
   
4. 
   
5. int rtc[7];
   
6. byte rr[7];
   
7. int ledPin =  13;
   
8. void setup()
   
9. {
   
10.   DDRC|=_BV(2) |_BV(3);  // POWER:Vcc Gnd
    
11.   PORTC |=_BV(3);  // VCC PINC3
    
12.   pinMode(ledPin, OUTPUT);  
    
13.   Serial.begin(9600);
    
14.   RTC.get(rtc,true);
    
15.   if(rtc[6]<12){
    
16.     RTC.stop();
    
17.     RTC.set(DS1307_SEC,1);
    
18.     RTC.set(DS1307_MIN,27);
    
19.     RTC.set(DS1307_HR,01);
    
20.     RTC.set(DS1307_DOW,7);
    
21.     RTC.set(DS1307_DATE,12);
    
22.     RTC.set(DS1307_MTH,2);
    
23.     RTC.set(DS1307_YR,12);
    
24.     RTC.start();
    
25.   }
    
26.   //RTC.SetOutput(LOW);
    
27.   //RTC.SetOutput(HIGH);
    
28.   //RTC.SetOutput(DS1307_SQW1HZ);
    
29.   //RTC.SetOutput(DS1307_SQW4KHZ);
    
30.   //RTC.SetOutput(DS1307_SQW8KHZ);
    
31.   RTC.SetOutput(DS1307_SQW32KHZ);
    
32. }
    
33. 
    
34. void loop()
    
35. {
    
36.   int i;
    
37.   RTC.get(rtc,true);
    
38. 
    
39.   for(i=0; i<7; i++)
    
40.   {
    
41.     Serial.print(rtc[i]);
    
42.     Serial.print(" ");
    
43.   }
    
44.   Serial.println();
    
45.         digitalWrite(ledPin, HIGH);
    
46.         delay(500);
    
47.         digitalWrite(ledPin, LOW);
    
48.         delay(500);
    
49. if (Serial.available() > 6) {
    
50.      for(i=0;i<7;i++){
    
51.        rr[i]=BCD2DEC(Serial.read());
    
52.      }
    
53.      Serial.println("SET TIME:");
    
54.        RTC.stop();
    
55.     RTC.set(DS1307_SEC,rr[6]);
    
56.     RTC.set(DS1307_MIN,rr[5]);
    
57.     RTC.set(DS1307_HR,rr[4]);
    
58.     RTC.set(DS1307_DOW,rr[3]);
    
59.     RTC.set(DS1307_DATE,rr[2]);
    
60.     RTC.set(DS1307_MTH,rr[1]);
    
61.     RTC.set(DS1307_YR,rr[0]);
    
62.     RTC.start();
    
63. }
    
64. }
    
65. char BCD2DEC(char var){
    
66.   if (var>9){
    
67.      var=(var>>4)*10+(var&0x0f);
    
68.   }
    
69.   return var;
    
70. }

复制代码

上面是代码
不清楚怎么设定时间，请大侠们帮小生一把

komoya

为什么不用专用的类呢？    RTClib  这个类很不错啊。

这个是他的示范代码，设定时间为当前电脑的时间。

[pre lang="arduino" line="1" file="RTCexample"]// Date and time functions using a DS1307 RTC connected via I2C and Wire lib

#include <Wire.h>
#include "RTClib.h"

RTC_DS1307 RTC;

void setup () {
    Serial.begin(57600);
    Wire.begin();
    RTC.begin();

  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(__DATE__, __TIME__));
  }
}

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(now.hour(), DEC);
    Serial.print(':');
    Serial.print(now.minute(), DEC);
    Serial.print(':');
    Serial.print(now.second(), DEC);
    Serial.println();
   
    Serial.print(" since midnight 1/1/1970 = ");
    Serial.print(now.unixtime());
    Serial.print("s = ");
    Serial.print(now.unixtime() / 86400L);
    Serial.println("d");
   
    // calculate a date which is 7 days and 30 seconds into the future
    DateTime future (now.unixtime() + 7 * 86400L + 30);
   
    Serial.print(" now + 7d + 30s: ");
    Serial.print(future.year(), DEC);
    Serial.print('/');
    Serial.print(future.month(), DEC);
    Serial.print('/');
    Serial.print(future.day(), DEC);
    Serial.print(' ');
    Serial.print(future.hour(), DEC);
    Serial.print(':');
    Serial.print(future.minute(), DEC);
    Serial.print(':');
    Serial.print(future.second(), DEC);
    Serial.println();
   
    Serial.println();
    delay(3000);
}
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