#define BUTTON_PIN 14 // data line for the feature button
#define LED_PIN 15 // data line for the feature LED
byte buttonState;
volatile bool buttonReleased = false; // button released state variable
byte LEDState = LOW;




void toggleLED(){
  if (LEDState == LOW) {
  LEDState = HIGH;
  }  else {
  LEDState = LOW;
  }
  digitalWrite(LED_PIN, LEDState);
 }



void IRAM_ATTR buttonReleasedInterrupt() {
buttonReleased = true; // ISR updates the state variable
}





void setup() {
        Serial.begin(115200);
        pinMode(BUTTON_PIN, INPUT);

        LEDState = LOW;
        pinMode(LED_PIN, OUTPUT);

      attachInterrupt(digitalPinToInterrupt(BUTTON_PIN),
      buttonReleasedInterrupt,
      FALLING);
}

void loop() {

  if (buttonReleased) {
    Serial.println("Button Released");
  buttonReleased = false; // reset the state variable
  toggleLED(); // process the action
  }
//buttonState = digitalRead(BUTTON_PIN); // read the button state
//Serial.print("buttonState:");
//Serial.println(buttonState);
delay(10);
}