2021-11-29 02:34:21 -05:00
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#include "WatchyRTC.h"
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2022-04-28 21:17:00 -04:00
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WatchyRTC::WatchyRTC() : rtc_ds(false) {}
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2021-11-29 02:34:21 -05:00
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2022-04-28 21:17:00 -04:00
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void WatchyRTC::init() {
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byte error;
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Wire.beginTransmission(RTC_DS_ADDR);
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error = Wire.endTransmission();
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if (error == 0) {
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rtcType = DS3231;
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} else {
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Wire.beginTransmission(RTC_PCF_ADDR);
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2021-11-29 02:34:21 -05:00
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error = Wire.endTransmission();
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2022-04-28 21:17:00 -04:00
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if (error == 0) {
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rtcType = PCF8563;
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} else {
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// RTC Error
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2021-11-29 02:34:21 -05:00
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}
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2022-04-28 21:17:00 -04:00
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}
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2021-11-29 02:34:21 -05:00
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}
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2022-04-28 21:17:00 -04:00
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void WatchyRTC::config(
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String datetime) { // String datetime format is YYYY:MM:DD:HH:MM:SS
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if (rtcType == DS3231) {
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_DSConfig(datetime);
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} else {
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_PCFConfig(datetime);
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}
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2021-11-29 02:34:21 -05:00
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}
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2022-04-28 21:17:00 -04:00
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void WatchyRTC::clearAlarm() {
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if (rtcType == DS3231) {
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rtc_ds.alarm(DS3232RTC::ALARM_2);
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} else {
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int nextAlarmMinute = 0;
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rtc_pcf.clearAlarm(); // resets the alarm flag in the RTC
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nextAlarmMinute = rtc_pcf.getMinute();
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nextAlarmMinute =
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(nextAlarmMinute == 59)
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? 0
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: (nextAlarmMinute + 1); // set alarm to trigger 1 minute from now
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rtc_pcf.setAlarm(nextAlarmMinute, 99, 99, 99);
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}
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2021-11-29 02:34:21 -05:00
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}
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2022-04-28 21:17:00 -04:00
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void WatchyRTC::read(tmElements_t &tm) {
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if (rtcType == DS3231) {
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rtc_ds.read(tm);
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} else {
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2022-10-08 16:22:33 -04:00
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rtc_pcf.getDate();
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2022-04-28 21:17:00 -04:00
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tm.Year = y2kYearToTm(rtc_pcf.getYear());
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tm.Month = rtc_pcf.getMonth();
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tm.Day = rtc_pcf.getDay();
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tm.Wday =
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rtc_pcf.getWeekday() + 1; // TimeLib & DS3231 has Wday range of 1-7, but
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// PCF8563 stores day of week in 0-6 range
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tm.Hour = rtc_pcf.getHour();
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tm.Minute = rtc_pcf.getMinute();
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tm.Second = rtc_pcf.getSecond();
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}
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2021-11-29 02:34:21 -05:00
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}
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2022-04-28 21:17:00 -04:00
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void WatchyRTC::set(tmElements_t tm) {
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if (rtcType == DS3231) {
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time_t t = makeTime(tm);
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rtc_ds.set(t);
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} else {
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time_t t = makeTime(tm); // make and break to calculate tm.Wday
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breakTime(t, tm);
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// day, weekday, month, century(1=1900, 0=2000), year(0-99)
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rtc_pcf.setDate(
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tm.Day, tm.Wday - 1, tm.Month, 0,
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tmYearToY2k(tm.Year)); // TimeLib & DS3231 has Wday range of 1-7, but
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// PCF8563 stores day of week in 0-6 range
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// hr, min, sec
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rtc_pcf.setTime(tm.Hour, tm.Minute, tm.Second);
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clearAlarm();
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}
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2021-11-29 02:34:21 -05:00
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}
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2022-04-28 21:17:00 -04:00
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uint8_t WatchyRTC::temperature() {
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if (rtcType == DS3231) {
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return rtc_ds.temperature();
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} else {
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return 255; // error
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}
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2021-11-29 02:34:21 -05:00
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}
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2022-04-28 21:17:00 -04:00
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void WatchyRTC::_DSConfig(
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String datetime) { // String datetime is YYYY:MM:DD:HH:MM:SS
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if (datetime != "") {
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tmElements_t tm;
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tm.Year = CalendarYrToTm(_getValue(datetime, ':', 0).toInt()); // YYYY -
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// 1970
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tm.Month = _getValue(datetime, ':', 1).toInt();
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tm.Day = _getValue(datetime, ':', 2).toInt();
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tm.Hour = _getValue(datetime, ':', 3).toInt();
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tm.Minute = _getValue(datetime, ':', 4).toInt();
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tm.Second = _getValue(datetime, ':', 5).toInt();
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time_t t = makeTime(tm);
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rtc_ds.set(t);
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}
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// https://github.com/JChristensen/DS3232RTC
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rtc_ds.squareWave(DS3232RTC::SQWAVE_NONE); // disable square wave output
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rtc_ds.setAlarm(DS3232RTC::ALM2_EVERY_MINUTE, 0, 0, 0,
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0); // alarm wakes up Watchy every minute
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rtc_ds.alarmInterrupt(DS3232RTC::ALARM_2, true); // enable alarm interrupt
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2021-11-29 02:34:21 -05:00
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}
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2022-04-28 21:17:00 -04:00
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void WatchyRTC::_PCFConfig(
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String datetime) { // String datetime is YYYY:MM:DD:HH:MM:SS
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if (datetime != "") {
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tmElements_t tm;
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tm.Year = CalendarYrToTm(_getValue(datetime, ':', 0).toInt()); // YYYY -
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// 1970
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tm.Month = _getValue(datetime, ':', 1).toInt();
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tm.Day = _getValue(datetime, ':', 2).toInt();
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tm.Hour = _getValue(datetime, ':', 3).toInt();
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tm.Minute = _getValue(datetime, ':', 4).toInt();
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tm.Second = _getValue(datetime, ':', 5).toInt();
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time_t t = makeTime(tm); // make and break to calculate tm.Wday
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breakTime(t, tm);
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// day, weekday, month, century(1=1900, 0=2000), year(0-99)
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rtc_pcf.setDate(
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tm.Day, tm.Wday - 1, tm.Month, 0,
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tmYearToY2k(tm.Year)); // TimeLib & DS3231 has Wday range of 1-7, but
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// PCF8563 stores day of week in 0-6 range
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// hr, min, sec
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rtc_pcf.setTime(tm.Hour, tm.Minute, tm.Second);
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}
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// on POR event, PCF8563 sets month to 0, which will give an error since
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// months are 1-12
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clearAlarm();
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2021-11-29 02:34:21 -05:00
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}
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2022-04-28 21:17:00 -04:00
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String WatchyRTC::_getValue(String data, char separator, int index) {
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int found = 0;
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int strIndex[] = {0, -1};
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int maxIndex = data.length() - 1;
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2022-04-28 21:17:00 -04:00
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for (int i = 0; i <= maxIndex && found <= index; i++) {
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if (data.charAt(i) == separator || i == maxIndex) {
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found++;
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strIndex[0] = strIndex[1] + 1;
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strIndex[1] = (i == maxIndex) ? i + 1 : i;
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2021-11-29 02:34:21 -05:00
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}
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}
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2022-04-28 21:17:00 -04:00
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return found > index ? data.substring(strIndex[0], strIndex[1]) : "";
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2022-01-05 03:25:22 -05:00
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}
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