int buttonPin = 2;     // Pin where the button is connected
int ledPin = 13;       // Pin where the built-in LED is connected
int buttonState = 0;   // Variable to store the current button state
int lastButtonState = 0; // Variable to store the previous button state
unsigned long lastPressTime = 0; // Time of the last button press
unsigned long debounceDelay = 50;  // Delay to avoid button bounce (debouncing)
int blinkCount = 0;  // Number of times the LED should blink

void setup() {
  pinMode(buttonPin, INPUT);   // Set button pin as input
    pinMode(ledPin, OUTPUT);     // Set LED pin as output
    }

    void loop() {
      // Read the button state
        buttonState = digitalRead(buttonPin);

          // Check if the button state has changed (debounced)
            if (buttonState != lastButtonState) {
                lastPressTime = millis();  // Reset the debounce timer
                  }

                    // If the button is pressed and enough time has passed (debounced)
                      if (buttonState == HIGH && millis() - lastPressTime > debounceDelay) {
                          // Generate a random number (1 or 2) to determine the number of blinks
                              blinkCount = random(1, 3);  // 50% chance for 1 or 2 blinks

                                  // Blink the LED based on the random number
                                      blinkLED(blinkCount);
                                          
                                              // After blinking, wait until the button is released before proceeding
                                                  while (digitalRead(buttonPin) == HIGH) {
                                                        // Keep waiting for button to be released
                                                            }
                                                              }

                                                                lastButtonState = buttonState;  // Update the last button state
                                                                }

                                                                void blinkLED(int times) {
                                                                  for (int i = 0; i < times; i++) {
                                                                      digitalWrite(ledPin, HIGH);  // Turn LED on
                                                                          delay(500);                  // Wait for 500ms
                                                                              digitalWrite(ledPin, LOW);   // Turn LED off
                                                                                  delay(500);                  // Wait for 500ms
                                                                                    }
                                                                                    }