int ledka = 4;
long timenow = 0;
unsigned long period = 400;
bool toggle = true;
bool action1 = false;
bool action2 = false;
unsigned long t1 = 1000;
unsigned long t2 = 2000;

#define uS_TO_S_FACTOR 10  /* Conversion factor for micro seconds to seconds */
#define TIME_TO_SLEEP  1        /* Time ESP32 will go to sleep (in seconds) */
RTC_DATA_ATTR int bootCount = 0;

void setup() {
  Serial.begin(9600);
  Serial.println("Ahoj jdeme na to\n");
  //esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR);
  // put your setup code here, to run once:
  pinMode(ledka, OUTPUT);
  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(ledka, HIGH);

  ++bootCount;
  Serial.println("Boot number: " + String(bootCount));

  //Print the wakeup reason for ESP32
  print_wakeup_reason();


  esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR);
    Serial.println("Setup ESP32 to sleep for every " + String(TIME_TO_SLEEP) +
    " Seconds");
    Serial.println("Going to sleep now");
    delay(1000);
    Serial.flush(); 
    esp_deep_sleep_start();
    Serial.println("This will never be printed");
}

void loop() {
  long akttime = millis();
  //Serial.println(akttime);

  if(akttime >= timenow + period){
    timenow += period;
    toggle = !toggle;
    BlikejSVestavenou();
    BlikejSCervenou();
  }

  if((akttime >= t1) && !action1){
    action1 = true;
  }
  
}



void BlikejSCervenou() {
  if (toggle) 
    digitalWrite(ledka, HIGH);   // turn the LED on (HIGH is the voltage level)
  else                       // wait for a second
    digitalWrite(ledka, LOW);    // turn the LED off by making the voltage LOW
}

void BlikejSVestavenou() {
  if (toggle) 
    digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)
  else 
    digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW
  
}

void print_wakeup_reason(){
  esp_sleep_wakeup_cause_t wakeup_reason;

  wakeup_reason = esp_sleep_get_wakeup_cause();

  switch(wakeup_reason)
  {
    case ESP_SLEEP_WAKEUP_EXT0 : Serial.println("Wakeup caused by external signal using RTC_IO"); break;
    case ESP_SLEEP_WAKEUP_EXT1 : Serial.println("Wakeup caused by external signal using RTC_CNTL"); break;
    case ESP_SLEEP_WAKEUP_TIMER : Serial.println("Wakeup caused by timer"); break;
    case ESP_SLEEP_WAKEUP_TOUCHPAD : Serial.println("Wakeup caused by touchpad"); break;
    case ESP_SLEEP_WAKEUP_ULP : Serial.println("Wakeup caused by ULP program"); break;
    default : Serial.printf("Wakeup was not caused by deep sleep: %d\n",wakeup_reason); break;
  }
}