48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
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// Code by JeeLabs http://news.jeelabs.org/code/
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// Released to the public domain! Enjoy!
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// Simple general-purpose date/time class (no TZ / DST / leap second handling!)
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class DateTime {
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public:
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DateTime (uint32_t t =0);
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DateTime (uint16_t year, uint8_t month, uint8_t day,
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uint8_t hour =0, uint8_t min =0, uint8_t sec =0);
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DateTime (const char* date, const char* time);
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uint16_t year() const { return 2000 + yOff; }
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uint8_t month() const { return m; }
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uint8_t day() const { return d; }
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uint8_t hour() const { return hh; }
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uint8_t minute() const { return mm; }
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uint8_t second() const { return ss; }
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uint8_t dayOfWeek() const;
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// 32-bit times as seconds since 1/1/2000
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long secondstime() const;
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// 32-bit times as seconds since 1/1/1970
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uint32_t unixtime(void) const;
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protected:
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uint8_t yOff, m, d, hh, mm, ss;
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};
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// RTC based on the DS1307 chip connected via I2C and the Wire library
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class RTC_DS1307 {
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public:
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static uint8_t begin(void);
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static void adjust(const DateTime& dt);
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uint8_t isrunning(void);
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static DateTime now();
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};
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// RTC using the internal millis() clock, has to be initialized before use
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// NOTE: this clock won't be correct once the millis() timer rolls over (>49d?)
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class RTC_Millis {
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public:
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static void begin(const DateTime& dt) { adjust(dt); }
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static void adjust(const DateTime& dt);
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static DateTime now();
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protected:
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static long offset;
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};
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