const int led0 = 0;
const int led1 = 2;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(led0, OUTPUT);
  pinMode(led1, OUTPUT);
  Serial.println("THANAPHON KHANYA");
  Serial.println("Poy");
}

void loop() {

  digitalWrite(led0, HIGH);
  digitalWrite(led1, LOW);
  delay(200);
  digitalWrite(led0, LOW);
  digitalWrite(led1, HIGH);
  delay(200);
}