// Define debounce delay in milliseconds
#define DEBOUNCE_DELAY 80

// Pin assignments for LEDs and buttons
#define buttonPin1 0

// Variables to track button states
volatile bool button1Pressed = false;
bool previousButton1State = false;
unsigned long lastDebounceTime1 = 0;

// Interrupt service routine to handle button 1 press event with debounce
void IRAM_ATTR handleButton1Press() {
  unsigned long currentTime = millis();

  // Check debounce delay
  if ((currentTime - lastDebounceTime1) > DEBOUNCE_DELAY) {
    // Check if buttonPin1 is pressed
    if (digitalRead(buttonPin1) == LOW) {
      button1Pressed = true; // Button 1 is pressed
    } else {
      button1Pressed = false; // Button 1 is released
    }
    lastDebounceTime1 = currentTime; // Update last debounce time
  }
}

void setup() {
  // Serial port for debugging purposes
  Serial.begin(115200);

  // Configure button pins with internal pull-up resistors and attach interrupts
  pinMode(buttonPin1, INPUT_PULLUP);
  attachInterrupt(buttonPin1, handleButton1Press, CHANGE);
}

void loop() {
  // Print button states to serial monitor
  if (button1Pressed != previousButton1State) {
    previousButton1State = button1Pressed;
    if (button1Pressed) {
      Serial.println("Button 1 pressed ");
    }
  }

  delay(100); // Add a small delay to avoid flooding the serial monitor
}