#include <ezButton.h>

const word threshold = 1000;
unsigned long pressed = 0;

ezButton button(2);

void setup() {
  Serial.begin(115200);
  pinMode(LED_BUILTIN, OUTPUT);
  button.setDebounceTime(50);
}

void loop() {
  button.loop();
  if (button.isPressed()) pressed = millis();
  //  shorthand
  // if (button.isReleased())  digitalWrite(LED_BUILTIN, millis() - pressed < threshold ? 1 : 0);
  //  longhand
  if (button.isReleased()) {
    if (millis() - pressed < threshold) {
      digitalWrite(LED_BUILTIN, HIGH);
      Serial.println("short press = LED ON");
    }else{
      digitalWrite(LED_BUILTIN, LOW);
      Serial.println("long press = LED OFF");
    }
  }
}