const int pinLed1 =4;
const int pinLed2 =22;

void setup() {
  pinMode(pinLed1, OUTPUT);
  pinMode(pinLed2, OUTPUT);

  Serial.begin(115200);
}

void loop() {
  digitalWrite(pinLed1, HIGH);
  digitalWrite(pinLed2, LOW);
  delay(5000);
  digitalWrite(pinLed1, LOW);
  digitalWrite(pinLed2, HIGH);
  delay(5000);
}