volatile uint32_t count = 0;  // Holds the count of interrupts
uint32_t lastReportedCount = 0;  // Holds the last count that was reported

// Variables for debouncing
unsigned long lastDebounceTime = 0;  // Last time button was pressed
unsigned long debounceDelay = 50;     // Debounce delay in milliseconds

// Function to increment the count
void incrementCount() {
  unsigned long currentTime = millis();
  if (currentTime - lastDebounceTime > debounceDelay) {
    count++;
    lastDebounceTime = currentTime;  // Update debounce time
  }
}


// Function to decrement the count
void decrementCount() {
  unsigned long currentTime = millis();
  if (currentTime - lastDebounceTime > debounceDelay) {
    if (count > 0) {
      count--;
    }
    lastDebounceTime = currentTime;  // Update debounce time
  }
}

void setup() {
  Serial.begin(115200);

  pinMode(2, INPUT_PULLUP);  // Set pin 2 as input with pull-up resistor (for increment)
  pinMode(4, INPUT_PULLUP);  // Set pin 3 as input with pull-up resistor (for decrement)

  // Attach interrupts to both buttons with a debounce mechanism
attachInterrupt(digitalPinToInterrupt(2), incrementCount, CHANGE);  // Increment on state change
attachInterrupt(digitalPinToInterrupt(4), decrementCount, CHANGE);  // Decrement on state change
 // Interrupt on falling edge for button 2
}

void loop() {
  // Only report the count if it has increased or decreased
  noInterrupts();
  if (count != lastReportedCount) {
    lastReportedCount = count;  // Update the last reported count
    Serial.print("Interrupt count: ");
    Serial.println(count);  // Print the current count
  }
  interrupts();

  // Small delay for debounce
  delay(100);  // Add a small delay to prevent excessive reporting
}