volatile bool Mode_one = false;
volatile bool Mode_two = false;
bool lastModeOne = false;
bool lastModeTwo = false;

void IRAM_ATTR Mode_first(){
  Mode_one = true;
}

void IRAM_ATTR Mode_second(){
  Mode_two = true;
}

void setup() {
  Serial.begin(9600);
  
  pinMode(33, INPUT_PULLUP);
  attachInterrupt(digitalPinToInterrupt(33), Mode_first, FALLING);
  
  pinMode(32, INPUT_PULLUP);
  attachInterrupt(digitalPinToInterrupt(32), Mode_second, FALLING);
  
  pinMode(27, OUTPUT);
}

void loop() {
  // Handle Mode_one toggle
  if(Mode_one) {
    Mode_one = false;
    lastModeOne = !lastModeOne;
    
    if(lastModeOne) {
      lastModeTwo = false;  // Disable other mode
      Serial.println("Mode 1 ON");
    } else {
      Serial.println("Mode 1 OFF");
    }
  }
  
  // Handle Mode_two toggle
  if(Mode_two) {
    Mode_two = false;
    lastModeTwo = !lastModeTwo;
    
    if(lastModeTwo) {
      lastModeOne = false;  // Disable other mode
      Serial.println("Mode 2 ON");
    } else {
      Serial.println("Mode 2 OFF");
    }
  }
  
  // Execute based on active mode
  if(lastModeOne) {
    analogWrite(27, 191); 
  }
  else if(lastModeTwo) {
    analogWrite(27, 64); 
  }
  else {
    digitalWrite(27, LOW);
  }
}