LovyanGfxEpdTimer.ino

#define LGFX_AUTODETECT
#include <LovyanGFX.hpp>
#include "I2C_BM8563.h"

LGFX lcd;
I2C_BM8563 rtc(I2C_BM8563_DEFAULT_ADDRESS, Wire1);

void setup() {
  // Init lcd
  lcd.init();

  // Init I2C
  int board = lcd.getBoard();
  if (board == lgfx::board_M5Stack_CoreInk) {
    Wire1.begin(21, 22);
    lcd.setTextColor(TFT_BLACK, TFT_WHITE);
  } else if (board == lgfx::board_M5Paper) {
    Wire1.begin(21, 22);
    lcd.setTextColor(TFT_BLACK, TFT_WHITE);
  }

  // Get RTC
  rtc.begin();
  I2C_BM8563_DateTypeDef dateStruct;
  I2C_BM8563_TimeTypeDef timeStruct;
  rtc.getDate(&dateStruct);
  rtc.getTime(&timeStruct);

  // 描画
  lcd.setTextSize(3);
  lcd.printf("%04d/%02d/%02d\n%02d:%02d:%02d\n",
             dateStruct.year,
             dateStruct.month,
             dateStruct.date,
             timeStruct.hours,
             timeStruct.minutes,
             timeStruct.seconds
            );
  lcd.display();
  lcd.waitDisplay();  // 描画終了まで待たないと描画終了前に電源OFFになる

  // Timer Set
  rtc.SetAlarmIRQ(5);

  // Sleep
  if (board == lgfx::board_M5Stack_CoreInk) {
    lcd.sleep();
    pinMode(12, OUTPUT);
    digitalWrite(12, 0);
  } else if (board == lgfx::board_M5Paper) {
    lcd.sleep();
    pinMode(2, OUTPUT);
    digitalWrite(2, 0);
  } else {
    esp_sleep_enable_timer_wakeup(5 * 1000 * 1000);
    esp_deep_sleep_start();
  }
}

void loop() {
  // ここに入ってくるってことはスリープにはいれていない
  delay(1000);
  lcd.wakeup(); // 復帰しないと描画できない
  lcd.printf("I'm not sleeping.\n");
  lcd.display();
  delay(4000);
  ESP.restart();
}