TaskHandle_t task0Handle;

void setup() {
  pinMode(2, OUTPUT);
  pinMode(23, OUTPUT);

  Serial.begin(115200);

  //create a task on core 0 that will be execute task1Func() with priority 10
  xTaskCreatePinnedToCore(
    task0,        /* Task function. */
    "Task1",      /* name of task. */
    10000,        /* Stack size of task */
    nullptr,      /* parameter of the task */
    5,            /* priority of the task */
    &task0Handle, /* Task handle to keep track of created task */
    0);           /* pin task to core 0 */
}


void task0( void * pvParameters ) {
  for (;;) {
    digitalWrite(2, HIGH);
    delay(1000);
    digitalWrite(2, LOW);
    delay(300);
  }
}

void loop() {
  digitalWrite(23, LOW);
  delay(250);
  digitalWrite(23, HIGH);
  delay(250);
}