// Define the GPIO pin
const int signalPin = 2; // GPIO pin for the signal

// Define the durations and the number of toggles for each interval
const unsigned long durations[] = {800, 500, 100}; // Durations in milliseconds
const int numToggles[] = {1, 2, 5}; // Number of toggles per second for each duration

void setup() {
  // Initialize the GPIO pin as an output
  pinMode(signalPin, OUTPUT);
  digitalWrite(signalPin, LOW); // Start with the signal LOW
}

void loop() {
  // Iterate through each duration
  for (int i = 0; i < 3; i++) {
    unsigned long duration = durations[i];
    int toggles = numToggles[i];
    unsigned long toggleInterval = duration / 2;

    // Generate the signal for 1 second
    unsigned long startTime = millis();
    while (millis() - startTime < 1000) {
      // Toggle the signal pin
      digitalWrite(signalPin, HIGH);
      delay(toggleInterval);
      digitalWrite(signalPin, LOW);
      delay(toggleInterval);
    }
  }
}