const int LED1_PIN = 2;
const int LED2_PIN = 3;

unsigned long previousMillis1 = 0;
unsigned long previousMillis2 = 0;
const long interval1_short = 100;  // Blink duration for '1' (short blink) in milliseconds
const long interval1_long = 200;   // Blink duration for '2' (longer blink) in milliseconds

int pattern[] = {1, 1, 2, 1, 1, 1, 2}; // Pattern sequence for LED1
int patternIndex = 0; // Index to track the current position in the pattern

void setup() {
  pinMode(LED1_PIN, OUTPUT);
  pinMode(LED2_PIN, OUTPUT);
}

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

  // Blink LED1 based on the pattern sequence
  if (currentMillis - previousMillis1 >= (pattern[patternIndex] == 1 ? interval1_short : interval1_long)) {
    previousMillis1 = currentMillis;
    digitalWrite(LED1_PIN, HIGH); // Turn on LED1
    
    // Set the duration for LED1 based on the pattern
    long duration = (pattern[patternIndex] == 1 ? interval1_short : interval1_long);
    
    // If it's a short blink, wait 50ms and then turn off
    if (pattern[patternIndex] == 1) {
      delay(50);
    }
    
    digitalWrite(LED1_PIN, LOW); // Turn off LED1
    delay(duration - (pattern[patternIndex] == 1 ? 50 : 0)); // Wait for the remaining duration
    
    // Move to the next position in the pattern
    patternIndex = (patternIndex + 1) % (sizeof(pattern) / sizeof(pattern[0]));
  }

  // Blink LED2 (If needed) - You can keep this part or remove it if not required
  if (currentMillis - previousMillis2 >= 1000) {
    previousMillis2 = currentMillis;
    digitalWrite(LED2_PIN, !digitalRead(LED2_PIN)); // Toggle LED2 state every 1 second
  }
}