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RTC Examples
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‎.gitignore

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.vscode/
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build/
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Build/
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examples/.DS_Store
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.DS_Store

‎examples/Inkplate6PLUS/Advanced_Inkplate_Features/Inkplate_RTC_Alarm_Interrupt_Sleep_Example/Inkplate_RTC_Alarm_Interrupt_Sleep_Example.ino

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/*
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Inkplate_RTC_Alarm_Interrupt_Sleep_Example example for e-radionica Inkplate 6PLUS
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For this example you will need only USB cable and Inkplate 6PLUS
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Select "Inkplate 6PLUS(ESP32)" from Tools -> Board menu.
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Don't have "Inkplate 6PLUS(ESP32)" option? Follow our tutorial and add it:
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https://e-radionica.com/en/blog/add-inkplate-6-to-arduino-ide/
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This example will show you how to use RTC alarm interrupt and sleep.
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You can use this example to wake up your ESP32 from deep sleep.
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Inkplate features RTC chip with interrupt for alarm connected to GPIO39
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Want to learn more about Inkplate? Visit www.inkplate.io
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Looking to get support? Write on our forums: http://forum.e-radionica.com/en/
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19 August 2021 by e-radionica.com
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*/
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#ifndef ARDUINO_INKPLATE6PLUS
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#error "Wrong board selection for this example, please select Inkplate 6PLUS in the boards menu."
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#endif
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#include "Inkplate.h" // Include Inkplate library to the sketch
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#include "driver/rtc_io.h" // Include ESP32 library for RTC pin I/O (needed for rtc_gpio_isolate() function)
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#include <rom/rtc.h> // Include ESP32 library for RTC (needed for rtc_get_reset_reason() function)
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#define uS_TO_S_FACTOR 1000000 // Conversion factor for micro seconds to seconds
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#define TIME_TO_SLEEP 10 // Time how long ESP32 will be in deep sleep (in seconds). In this case 10 seconds.
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Inkplate display(INKPLATE_1BIT); // Create an object on Inkplate library and also set library into 1-bit mode (BW)
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void setup()
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{
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Serial.begin(115200);
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display.begin();
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// setTime(hour, minute, sec);
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display.rtcSetTime(6, 54, 00); // 24H mode, ex. 6:54:00
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// setDate(weekday, day, month, yr);
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display.rtcSetDate(6, 16, 5, 2020); // 0 for Sunday, ex. Saturday, 16.5.2020.
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// setAlarm(alarm_second, alarm_minute, alarm_hour, alarm_day, alarm_weekday);
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display.rtcSetAlarm(15, 54, 99, 99, 99); // use 99 if no alarm
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checkAlarm();
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}
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void loop()
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{
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display.setCursor(100, 100);
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display.setTextSize(3);
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display.println("Now is:");
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printCurrentTime();
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display.display();
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display.println("Entering sleep mode in 1 second");
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display.partialUpdate();
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delay(1000);
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sleepNow(); // sleep function called here
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}
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void printCurrentTime()
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{
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display.setCursor(100, display.getCursorY());
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display.setTextSize(3);
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switch (display.rtcGetWeekday())
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{
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case 0:
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display.print("Sunday , ");
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break;
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case 1:
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display.print("Monday , ");
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break;
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case 2:
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display.print("Tuesday , ");
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break;
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case 3:
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display.print("Wednesday , ");
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break;
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case 4:
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display.print("Thursday , ");
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break;
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case 5:
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display.print("Friday , ");
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break;
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case 6:
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display.print("Saturday , ");
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break;
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}
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display.print(display.rtcGetDay());
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display.print(".");
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display.print(display.rtcGetMonth());
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display.print(".");
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display.print(display.rtcGetYear());
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display.print(". ");
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display.print(display.rtcGetHour());
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display.print(":");
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display.print(display.rtcGetMinute());
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display.print(":");
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display.println(display.rtcGetSecond());
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}
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void checkAlarm()
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{
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display.setCursor(100, 400);
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display.setTextSize(3);
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display.print("Alarm is set to match: ");
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switch (display.rtcGetAlarmWeekday())
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{
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case 0:
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display.print("Sunday , ");
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break;
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case 1:
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display.print("Monday , ");
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break;
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case 2:
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display.print("Tuesday , ");
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break;
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case 3:
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display.print("Wednesday , ");
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break;
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case 4:
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display.print("Thursday , ");
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break;
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case 5:
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display.print("Friday , ");
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break;
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case 6:
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display.print("Saturday , ");
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break;
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default:
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break; // for getAlarmWeekday=99 alarm is not set for a weekday, do not print
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}
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if (display.rtcGetAlarmDay() != 99)
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{
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display.print("Date: ");
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display.print(display.rtcGetAlarmDay());
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}
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if (display.rtcGetAlarmHour() != 99)
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{
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display.print(" hour: ");
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display.print(display.rtcGetAlarmHour());
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}
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if (display.rtcGetAlarmMinute() != 99)
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{
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display.print(" minute: ");
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display.print(display.rtcGetAlarmMinute());
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}
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if (display.rtcGetAlarmSecond() != 99)
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{
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display.print(" second: ");
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display.print(display.rtcGetAlarmSecond());
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}
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display.println("");
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}
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void sleepNow()
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{
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// Enable wakup from deep sleep on gpio 39 where RTC interrupt is connected
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esp_sleep_enable_ext0_wakeup(GPIO_NUM_39, 0);
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// Go to sleep
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esp_deep_sleep_start();
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}

‎examples/Inkplate6PLUS/Advanced_Inkplate_Features/Inkplate_RTC_Basic_Example/Inkplate_RTC_Basic_Example.ino

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/*
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Inkplate_RTC_Basic_Example example for e-radionica Inkplate 6PLUS
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For this example you will need only USB cable and Inkplate 6PLUS
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Select "Inkplate 6PLUS(ESP32)" from Tools -> Board menu.
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Don't have "Inkplate 6PLUS(ESP32)" option? Follow our tutorial and add it:
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https://e-radionica.com/en/blog/add-inkplate-6-to-arduino-ide/
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This example shows you basic usage of Inkplate RTC.
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Want to learn more about Inkplate? Visit www.inkplate.io
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Looking to get support? Write on our forums: http://forum.e-radionica.com/en/
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19 August 2021 by e-radionica.com
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*/
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#ifndef ARDUINO_INKPLATE6PLUS
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#error "Wrong board selection for this example, please select Inkplate 6PLUS in the boards menu."
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#endif
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#include "Inkplate.h" // Include Inkplate library to the sketch
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#include "driver/rtc_io.h" // Include ESP32 library for RTC pin I/O (needed for rtc_gpio_isolate() function)
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#include <rom/rtc.h> // Include ESP32 library for RTC (needed for rtc_get_reset_reason() function)
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#define uS_TO_S_FACTOR 1000000 // Conversion factor for micro seconds to seconds
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#define TIME_TO_SLEEP 10 // Time how long ESP32 will be in deep sleep (in seconds). In this case 10 seconds.
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Inkplate display(INKPLATE_1BIT); // Create an object on Inkplate library and also set library into 1-bit mode (BW)
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void setup()
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{
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Serial.begin(115200);
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display.begin();
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display.rtcSetTime(6, 54, 00); // 24H mode, ex. 6:54:00
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display.rtcSetDate(6, 16, 5, 2020); // 0 for Sunday, ex. Saturday, 16.5.2020.
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}
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void loop()
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{
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printCurrentTime();
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delay(5000);
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}
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void printCurrentTime()
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{
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display.clearDisplay();
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display.setCursor(100, 100);
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display.setTextSize(4);
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switch (display.rtcGetWeekday())
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{
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case 0:
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display.print("Sunday , ");
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break;
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case 1:
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display.print("Monday , ");
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break;
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case 2:
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display.print("Tuesday , ");
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break;
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case 3:
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display.print("Wednesday , ");
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break;
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case 4:
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display.print("Thursday , ");
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break;
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case 5:
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display.print("Friday , ");
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break;
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case 6:
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display.print("Saturday , ");
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break;
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}
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display.print(display.rtcGetDay());
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display.print(".");
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display.print(display.rtcGetMonth());
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display.print(".");
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display.print(display.rtcGetYear());
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display.print(". ");
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display.print(display.rtcGetHour());
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display.print(":");
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display.print(display.rtcGetMinute());
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display.print(":");
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display.println(display.rtcGetSecond());
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display.display();
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}

‎examples/Inkplate6PLUS/Advanced_Inkplate_Features/Inkplate_RTC_Timer_Example/Inkplate_RTC_Timer_Example.ino

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/*
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Inkplate_RTC_Timer_Example example for e-radionica Inkplate 6PLUS
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For this example you will need only USB cable and Inkplate 6PLUS
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Select "Inkplate 6PLUS(ESP32)" from Tools -> Board menu.
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Don't have "Inkplate 6PLUS(ESP32)" option? Follow our tutorial and add it:
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https://e-radionica.com/en/blog/add-inkplate-6-to-arduino-ide/
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This example shows you timer usage of Inkplate RTC.
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Want to learn more about Inkplate? Visit www.inkplate.io
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Looking to get support? Write on our forums: http://forum.e-radionica.com/en/
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19 August 2021 by e-radionica.com
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*/
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#ifndef ARDUINO_INKPLATE6PLUS
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#error "Wrong board selection for this example, please select Inkplate 6PLUS in the boards menu."
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#endif
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#include "Inkplate.h" // Include Inkplate library to the sketch
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#include "driver/rtc_io.h" // Include ESP32 library for RTC pin I/O (needed for rtc_gpio_isolate() function)
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#include <rom/rtc.h> // Include ESP32 library for RTC (needed for rtc_get_reset_reason() function)
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#define uS_TO_S_FACTOR 1000000 // Conversion factor for micro seconds to seconds
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#define TIME_TO_SLEEP 10 // Time how long ESP32 will be in deep sleep (in seconds). In this case 10 seconds.
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Inkplate display(INKPLATE_1BIT); // Create an object on Inkplate library and also set library into 1-bit mode (BW)
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int countdown_time = 10;
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void setup()
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{
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Serial.begin(115200);
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display.begin();
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display.rtcSetTime(6, 54, 00); // 24H mode, ex. 6:54:00
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display.rtcSetDate(6, 16, 5, 2020); // 0 for Sunday, ex. Saturday, 16.5.2020.
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display.setCursor(0, 100);
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display.setTextSize(3);
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display.print("Now is:");
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}
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void loop()
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{
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printCurrentTime();
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display.print("Setting timer countdown, waking up in ");
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display.print(countdown_time);
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display.println(" seconds.");
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// while(!display.available());
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/* source_clock
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* Inkplate::TIMER_CLOCK_4096HZ -> clk = 4096Hz -> min timer = 244uS -> MAX timer = 62.256mS
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* Inkplate::TIMER_CLOCK_64HZ -> clk = 64Hz -> min timer = 15.625mS -> MAX timer = 3.984s
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* Inkplate::TIMER_CLOCK_1HZ -> clk = 1Hz -> min timer = 1s -> MAX timer = 255s
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* Inkplate::TIMER_CLOCK_1PER60HZ -> clk = 1/60Hz -> min timer = 60s -> MAX timer = 4h15min
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* value
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* coundowntime in seconds
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* int_enable
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* true = enable interrupt; false = disable interrupt
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* int_pulse
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* true = interrupt generate a pulse; false = interrupt follows timer flag
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*/
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display.rtcTimerSet(Inkplate::TIMER_CLOCK_1HZ, countdown_time, false, false);
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display.print("Waiting for a countdown");
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while (!display.rtcCheckTimerFlag())
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{
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display.print(".");
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delay(1000);
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}
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display.print("\nInterrupt triggered on: ");
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}
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void printCurrentTime()
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{
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switch (display.rtcGetWeekday())
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{
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case 0:
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display.print("Sunday , ");
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break;
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case 1:
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display.print("Monday , ");
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break;
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case 2:
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display.print("Tuesday , ");
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break;
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case 3:
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display.print("Wednesday , ");
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break;
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case 4:
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display.print("Thursday , ");
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break;
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case 5:
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display.print("Friday , ");
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break;
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case 6:
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display.print("Saturday , ");
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break;
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}
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display.print(display.rtcGetDay());
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display.print(".");
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display.print(display.rtcGetMonth());
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display.print(".");
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display.print(display.rtcGetYear());
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display.print(". ");
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display.print(display.rtcGetHour());
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display.print(":");
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display.print(display.rtcGetMinute());
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display.print(":");
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display.println(display.rtcGetSecond());
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display.display();
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}

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