void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);

  pinMode(14, OUTPUT);
  pinMode(26, OUTPUT);
}

void loop() {

  digitalWrite(14, HIGH);
  Serial.println(" LED ON");
  delay(4000);
  Serial.println("LED OFF");
  digitalWrite(14, LOW);
  digitalWrite(26, HIGH);
  Serial.println("LED ON");
  delay(4000);
  digitalWrite(26, LOW);
  Serial.println(" LED OFF");
}