eleksir/simpleclock
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Move Time Compensation feature under define

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* move Time Compensation feature under define
* translte last few eol to unix style
* make correction: in my case with bad chrystal rtc runs faster about
  9.5 seconds per day
This commit is contained in:
eleksir
2019-10-07 03:02:25 +03:00
parent ee1dc7bbea
commit ccb12d2076
1 changed files with 30 additions and 7 deletions
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27
simpleclock.ino
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@@ -11,6 +11,13 @@
#include <DS1307.h>
#include <SevSeg.h>
/* disable time compensation
* as we borrow more accurate chrystal and solder it to rtc breakboard
*/
//#define TIMECOMP
/* 0.5 second/day compensation flag */
//#define OFIVECOMP
#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
@@ -29,11 +36,15 @@ unsigned long previousPushTimer = 0;
/* dot blinking stuff */
volatile bool dot = true;
#ifdef TIMECOMP
/* time inaccuracy compensation flag */
volatile bool compflag1 = true;
volatile bool compflag2 = false;
const uint8_t timeSkew = 8; // assume that clock runs faster than should
const uint8_t timeSkew = 9; // assume that clock runs faster than should
#ifdef OFIVECOMP
volatile bool timeSkewEven = false; // comp. 1 additional second per 2 days
#endif
#endif
/* ambient light compensation aka night mode */
const int photoPin = A2;
@@ -132,38 +143,48 @@ ISR(TIMER1_OVF_vect)
else
dot = true;
#ifdef TIMECOMP
/* time compensation magic */
if ((myhour == 21) and (myminute == 21) and (mysecond == 21)
and (compflag2)) {
compflag1 = true;
#ifdef OFIVECOMP
(timeSkewEven) ? timeSkewEven = false : timeSkewEven;
#endif
}
if ((myhour == 21) and (myminute == 21) and (mysecond == 23)) {
compflag1 = false;
compflag2 = true;
}
#endif
}
void loop()
{
unsigned long currentMillis = millis();
#ifdef TIMECOMP
/*
* Let's implement time compenstion for individual rtc module time
* charachteristics. In in my case quartz resonator as inaccurate as
* about +8.5 seconds per 24 hours
* about +9.5 seconds per 24 hours
*/
if (compflag1 && compflag2) {
#ifdef OFIVECOMP
if (timeSkewEven) {
clock.fillByHMS(myhour, myminute, (mysecond - timeSkew - 1));
} else {
#endif
clock.fillByHMS(myhour, myminute, (mysecond - timeSkew));
#ifdef OFIVECOMP
}
#endif
clock.setTime();
compflag2 = false;
}
#endif
if (rtcsync) {
clock.getTime();
@@ -275,4 +296,6 @@ void updateTimeStr(uint8_t h, uint8_t m)
Display.setChars(str);
}
}
/* vim: set filetype=cpp: */