arduino: esc key only keyboard

esc_keyboard.ino

#include <Keyboard.h>

#define PIN_ESC_INPUT 8
char lastPress = 0;

char escKey = KEY_ESC;

void setup() {
  pinMode(PIN_ESC_INPUT, INPUT_PULLUP);
  pinMode(LED_BUILTIN, OUTPUT);
  // initialize control over the keyboard:
  Keyboard.begin();
}

void loop() {
  if (digitalRead(PIN_ESC_INPUT) == HIGH) {
    if (lastPress == 1) {
      lastPress = 0;
      digitalWrite(LED_BUILTIN, LOW);
      Keyboard.releaseAll();
    }
  } else {
    if (lastPress == 0) {
      lastPress = 1;
      digitalWrite(LED_BUILTIN, HIGH);
      Keyboard.press(escKey);
    }
  }
  delay(100);
}