Multitasking_Task.ino

#define LED1 LED_BUILTIN
#define LED2 23

void LEDTwo_Task(void *p){
  pinMode(LED2, OUTPUT);
  while(1) {
    digitalWrite(LED2, !digitalRead(LED2));
    delay(300);
  }
}

void setup() {
  xTaskCreate(&LEDTwo_Task, "LEDTwo_Task", 2048, NULL, 10, NULL);
  
  pinMode(LED1, OUTPUT);
}

void loop() {
  digitalWrite(LED1, !digitalRead(LED1));
  delay(500);
}