ESP32-BLE-Gamepad/examples/SingleButtonDebounce/SingleButtonDebounce.ino

#include <Bounce2.h>      // https://github.com/thomasfredericks/Bounce2
#include <BleGamepad.h>   // https://github.com/lemmingDev/ESP32-BLE-Gamepad

#define BUTTON_PIN 2
#define LED_PIN 13

Bounce debouncer = Bounce(); // Instantiate a Bounce object
BleGamepad bleGamepad;       // Instantiate a BleGamepad object

void setup() 
{
  bleGamepad.begin();                // Begin the gamepad
  
  pinMode(BUTTON_PIN, INPUT_PULLUP); // Setup the button with an internal pull-up

  debouncer.attach(BUTTON_PIN);      // After setting up the button, setup the Bounce instance :
  debouncer.interval(5);             // interval in ms

  pinMode(LED_PIN, OUTPUT);          // Setup the LED :
}

void loop() 
{
  if(bleGamepad.isConnected()) 
  {
    debouncer.update();              // Update the Bounce instance
    
    int value = debouncer.read();    // Get the updated value
  
    // Press gamepad button and turn on or off the LED as determined by the state
    if (value == LOW) 
    {
      digitalWrite(LED_PIN, HIGH);
      bleGamepad.press(BUTTON_1);
    } 
    else 
    {
      digitalWrite(LED_PIN, LOW);
      bleGamepad.release(BUTTON_1);
    }
  }
}