unsigned long myTime, myTime2; // set the time

//set the pins
byte greenPins1 = 13; 
byte greenPins2 = 11;
byte redPins1 = 12;
byte redPins2 = 10;

void setup() {
  pinMode(greenPins1, OUTPUT);
  pinMode(greenPins2, OUTPUT);
  pinMode(redPins1, OUTPUT);
  pinMode(redPins2, OUTPUT);
}

void loop() {
  if (millis() - myTime >= 1000) {
    myTime = millis();

    
    if (digitalRead(greenPins1) == LOW) {
      digitalWrite(greenPins1, HIGH);
    } else {
      digitalWrite(greenPins1, LOW);
    }

   
    if (digitalRead(greenPins2) == LOW) {
      digitalWrite(greenPins2, HIGH);
    } else {
      digitalWrite(greenPins2, LOW);
    }
  }

if (millis()-myTime2 > 500) {
  myTime2=millis();

  if(digitalRead(redPins1) ==LOW){
    digitalWrite(redPins1, HIGH);
    }

    
      else {
      digitalWrite(redPins1, LOW);
    }
    
if(digitalRead(redPins2)==LOW) {

  digitalWrite(redPins2, HIGH);
}
else {
  digitalWrite(redPins2, LOW);
}



}




}