//Arduino Uno R4 Wifi LESSON 3
//homework - four LEDs blinking simultenously

int dt = 500;    //delay time 
void setup() {
  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(10, OUTPUT);
  // put your setup code here, to run once:
}

void loop() {
    digitalWrite(13,HIGH);
    digitalWrite(12,HIGH);
    digitalWrite(11,HIGH);
    digitalWrite(10,HIGH);
    delay(dt);

    digitalWrite(13,LOW);
    digitalWrite(12,LOW);
    digitalWrite(11,LOW);
    digitalWrite(10,LOW);
    delay(dt);
  

}