mirror of https://github.com/sqfmi/Watchy.git
90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
/*
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* Watchy - Pokemon Watchface Example
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* Sets the RTC time if not set, goes to sleep and wakes up every minute to update the time on the display
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*/
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#ifndef ESP32
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#error Please select ESP32 Wrover Module under Tools > Board
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#endif
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#include <DS3232RTC.h>
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#include <GxEPD2_BW.h>
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#include <Fonts/FreeMonoBold12pt7b.h>
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#include "pokemon.h"
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#define RTC_PIN GPIO_NUM_33
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DS3232RTC RTC(false);
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GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEH0154D67
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void setup()
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{
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esp_sleep_wakeup_cause_t wakeup_reason;
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wakeup_reason = esp_sleep_get_wakeup_cause();
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switch(wakeup_reason)
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{
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case ESP_SLEEP_WAKEUP_EXT0: updateTime(false); break; //RTC Alarm Interrupt
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default: updateTime(true); //Hard Reset
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}
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esp_sleep_enable_ext0_wakeup(RTC_PIN, 0); //enable deep sleep wake on RTC interrupt
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esp_deep_sleep_start();
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}
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void loop(){}
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void updateTime(bool reset)
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{
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RTC.begin();
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if(reset){
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RTC.squareWave(SQWAVE_NONE); //disable square wave output
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RTC.set(compileTime()); //set RTC time to compile time
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RTC.setAlarm(ALM2_EVERY_MINUTE, 0, 0, 0, 0);
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RTC.alarmInterrupt(ALARM_2, true); //enable alarm interrupt
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}
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RTC.alarm(ALARM_2); //resets the alarm flag in the RTC
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tmElements_t currentTime;
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RTC.read(currentTime);
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display.init(0, reset); //_initial_refresh to false to prevent full update on init
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display.setFullWindow();
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display.fillScreen(GxEPD_WHITE);
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display.drawBitmap(0, 0, pokemon, display.epd2.WIDTH, display.epd2.HEIGHT, GxEPD_BLACK);
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display.setTextColor(GxEPD_BLACK);
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display.setFont(&FreeMonoBold12pt7b);
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display.setCursor(10, 170);
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if(currentTime.Hour < 10){
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display.print('0');
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}
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display.print(currentTime.Hour);
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display.print(':');
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if(currentTime.Minute < 10){
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display.print('0');
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}
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display.print(currentTime.Minute);
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display.display(true); //partial refresh
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display.hibernate();
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}
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time_t compileTime()
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{
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const time_t FUDGE(10); //fudge factor to allow for upload time, etc. (seconds, YMMV)
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const char *compDate = __DATE__, *compTime = __TIME__, *months = "JanFebMarAprMayJunJulAugSepOctNovDec";
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char compMon[3], *m;
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strncpy(compMon, compDate, 3);
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compMon[3] = '\0';
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m = strstr(months, compMon);
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tmElements_t tm;
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tm.Month = ((m - months) / 3 + 1);
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tm.Day = atoi(compDate + 4);
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tm.Year = atoi(compDate + 7) - 1970;
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tm.Hour = atoi(compTime);
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tm.Minute = atoi(compTime + 3);
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tm.Second = atoi(compTime + 6);
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time_t t = makeTime(tm);
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return t + FUDGE; //add fudge factor to allow for compile time
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}
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