const int redLedPin = 9;
const int greenLedPin = 10;

const long intervalRed = 1000;   
const long intervalGreen = 200;   

unsigned long previousMillis[2] = {0, 0}; // تخزين أوقات LED
bool ledStates[2] = {LOW, LOW}; // تخزين حالات LED

void setup() {
  pinMode(redLedPin, OUTPUT);
  pinMode(greenLedPin, OUTPUT);
}

void loop() {
  unsigned long currentMillis = millis();

  // التبديل بين LEDs
  for (int i = 0; i < 2; i++) {
    if (currentMillis - previousMillis[i] >= (i == 0 ? intervalRed : intervalGreen)) {
      previousMillis[i] = currentMillis;
      ledStates[i] = !ledStates[i];
      digitalWrite(i == 0 ? redLedPin : greenLedPin, ledStates[i]);
    }
  }
}