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manchozmanchoz
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Add support for PCF8563T RTC
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7 files changed

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‎examples/Basic/RealTimeClock/Helpers.h‎

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#pragma once
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#include <Arduino.h>
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#include <Arduino_EdgeControl.h>
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#include <mbed_mktime.h>
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// Convert build time to UNIX time
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time_t getBuildDateTime(bool local_time = true, int tz = 0)
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{
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char s_month[5];
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int year;
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tm t;
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time_t seconds;
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static const char month_names[] = "JanFebMarAprMayJunJulAugSepOctNovDec";
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sscanf(__DATE__, "%s %d %d", s_month, &t.tm_mday, &year);
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sscanf(__TIME__, "%2d %*c %2d %*c %2d", &t.tm_hour, &t.tm_min, &t.tm_sec);
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// Find where is s_month in month_names. Deduce month value.
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t.tm_mon = (strstr(month_names, s_month) - month_names) / 3 + 1;
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t.tm_year = year - 1900;
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_rtc_maketime(&t, &seconds, RTC_FULL_LEAP_YEAR_SUPPORT);
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if (!local_time) {
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if (tz > 200) {
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tz = 0x100 - tz; // Handle negative values
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seconds += (3600UL) * tz;
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} else {
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seconds -= (3600UL) * tz;
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}
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}
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return seconds;
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}
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String getRTCDate()
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{
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// APIs to get date fields.
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auto years = RealTimeClock.getYears();
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auto months = RealTimeClock.getMonths();
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auto days = RealTimeClock.getDays();
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char buf[12] {};
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snprintf(buf, 11, "20%02d-%02d-%02d", years, months, days);
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return String(buf);
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}
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String getRTCTime()
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{
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// APIs to get time fields.
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auto hours = RealTimeClock.getHours();
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auto minutes = RealTimeClock.getMinutes();
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auto seconds = RealTimeClock.getSeconds();
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char buf[11] {};
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snprintf(buf, 10, "%02d:%02d:%02d", hours, minutes, seconds);
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return String(buf);
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}
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String getRTCDateTime()
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{
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auto date = getRTCDate();
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auto time = getRTCTime();
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auto dateTime = date + ' ' + time;
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return dateTime;
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}
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String getLocaltime()
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{
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char buffer[32];
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tm t;
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_rtc_localtime(time(NULL), &t, RTC_FULL_LEAP_YEAR_SUPPORT);
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strftime(buffer, 32, "%Y-%m-%d %k:%M:%S", &t);
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return String(buffer);
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}
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String getLocaltime(const time_t& build_time)
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{
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char buffer[32];
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tm t;
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_rtc_localtime(build_time, &t, RTC_FULL_LEAP_YEAR_SUPPORT);
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strftime(buffer, 32, "%Y-%m-%d %k:%M:%S", &t);
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return String(buffer);
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}
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String getLocaltime(const char* fmt, bool local_time = true, int tz = 0)
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{
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char buffer[64];
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time_t tmp_time = time(NULL);
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tm t;
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if (!local_time) {
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if (tz > 200) {
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tz = 0x100 - tz; // Handle negative values
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tmp_time -= (3600UL) * tz;
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} else {
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tmp_time += (3600UL) * tz;
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}
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}
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_rtc_localtime(tmp_time, &t, RTC_FULL_LEAP_YEAR_SUPPORT);
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strftime(buffer, 64, fmt, &t);
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return String(buffer);
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}
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String getLocaltime(const time_t build_time, const char* fmt, bool local_time = true, int tz = 0)
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{
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char buffer[64];
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time_t tmp_time = build_time;
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tm t;
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if (!local_time) {
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if (tz > 200) {
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tz = 0x100 - tz; // Handle negative values
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tmp_time -= (3600UL) * tz;
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} else {
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tmp_time += (3600UL) * tz;
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}
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}
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_rtc_localtime(tmp_time, &t, RTC_FULL_LEAP_YEAR_SUPPORT);
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strftime(buffer, 64, fmt, &t);
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return String(buffer);
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}

‎examples/Basic/RealTimeClock/RealTimeClock.ino‎

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/*
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Arduino Edge Control - RTC Example
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This sketch shows how to use the RTC (PCF8563T) on the Arduino
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Edge Control and how to configure the RTC's time registers.
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Circuit:
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- Arduino Edge Control
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- CR2032 Battery
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- Optional: Arduino Edge Control LCD + Button brekout
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*/
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#include "Helpers.h"
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#include <Arduino_EdgeControl.h>
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void setup()
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{
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pinMode(POWER_ON, INPUT);
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Serial.begin(9600);
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for (auto timeout = millis() + 2500l; !Serial && millis() < timeout; delay(250))
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;
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Serial.println("Hello, Arduino Edge Control!");
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EdgeControl.begin();
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Power.on(PWR_3V3);
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Power.on(PWR_VBAT);
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Wire.begin();
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delay(500);
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Serial.print("Initializating the Real Time Clock...");
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while (!RealTimeClock.begin()) {
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Serial.println(" failed! Retrying...");
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delay(250);
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}
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Serial.println(" done!");
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// APIs to set date's fields: years, months, days, hours, minutes and seconds
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// The RTC time can be set as epoch, using one of the following two options:
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// - Calendar time: RealTimeClock.setEpoch(years, months, days, hours, minutes, seconds);
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// - UTC time: RealTimeClock.setEpoch(date_in_seconds);
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// Set the RTC only when LCD's PowerOn button is pressed.
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// YMMV.
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if (digitalRead(POWER_ON) == LOW) {
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Serial.println("Resetting the RTC to Sketch Build Datetime!");
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auto buildDateTime = getBuildDateTime();
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RealTimeClock.setEpoch(buildDateTime);
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Serial.print("Build ");
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}
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}
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void loop()
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{
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Serial.print("Date: ");
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Serial.println(getRTCDateTime());
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Serial.print("Unix time: ");
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Serial.println(time(NULL));
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delay(1000);
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}

‎examples/Basic/RealTimeClock_Alarm/Helpers.h‎

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#pragma once
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#include <Arduino.h>
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#include <mbed_mktime.h>
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// Convert build time to UNIX time
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time_t getBuildDateTime(bool local_time = true, int tz = 0)
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{
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char s_month[5];
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int year;
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tm t;
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time_t seconds;
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static const char month_names[] = "JanFebMarAprMayJunJulAugSepOctNovDec";
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sscanf(__DATE__, "%s %d %d", s_month, &t.tm_mday, &year);
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sscanf(__TIME__, "%2d %*c %2d %*c %2d", &t.tm_hour, &t.tm_min, &t.tm_sec);
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// Find where is s_month in month_names. Deduce month value.
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t.tm_mon = (strstr(month_names, s_month) - month_names) / 3 + 1;
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t.tm_year = year - 1900;
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_rtc_maketime(&t, &seconds, RTC_FULL_LEAP_YEAR_SUPPORT);
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if (!local_time) {
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if (tz > 200) {
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tz = 0x100 - tz; // Handle negative values
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seconds += (3600UL) * tz;
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} else {
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seconds -= (3600UL) * tz;
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}
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}
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return seconds;
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}
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String getLocaltime()
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{
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char buffer[32];
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tm t;
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_rtc_localtime(time(NULL), &t, RTC_FULL_LEAP_YEAR_SUPPORT);
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strftime(buffer, 32, "%Y-%m-%d %k:%M:%S", &t);
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return String(buffer);
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}
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String getLocaltime(const time_t& build_time)
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{
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char buffer[32];
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tm t;
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_rtc_localtime(build_time, &t, RTC_FULL_LEAP_YEAR_SUPPORT);
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strftime(buffer, 32, "%Y-%m-%d %k:%M:%S", &t);
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return String(buffer);
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}
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String getLocaltime(const char* fmt, bool local_time = true, int tz = 0)
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{
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char buffer[64];
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time_t tmp_time = time(NULL);
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tm t;
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if (!local_time) {
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if (tz > 200) {
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tz = 0x100 - tz; // Handle negative values
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tmp_time -= (3600UL) * tz;
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} else {
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tmp_time += (3600UL) * tz;
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}
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}
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_rtc_localtime(tmp_time, &t, RTC_FULL_LEAP_YEAR_SUPPORT);
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strftime(buffer, 64, fmt, &t);
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return String(buffer);
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}
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String getLocaltime(const time_t build_time, const char* fmt, bool local_time = true, int tz = 0)
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{
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char buffer[64];
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time_t tmp_time = build_time;
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tm t;
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if (!local_time) {
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if (tz > 200) {
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tz = 0x100 - tz; // Handle negative values
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tmp_time -= (3600UL) * tz;
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} else {
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tmp_time += (3600UL) * tz;
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}
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}
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_rtc_localtime(tmp_time, &t, RTC_FULL_LEAP_YEAR_SUPPORT);
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strftime(buffer, 64, fmt, &t);
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return String(buffer);
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}

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