#include <ezButton.h>

const int SHORT_PRESS_TIME = 2000; // 1000 milliseconds
const int LONG_PRESS_TIME  = 2000; // 1000 milliseconds

ezButton button1(7);  // create ezButton object that attach to pin 7;
ezButton button2(8);

unsigned long pressedTime  = 0;
unsigned long releasedTime = 0;

void setup() {
  Serial.begin(9600);
  button1.setDebounceTime(50);
  button2.setDebounceTime(50); // set debounce time to 50 milliseconds
}

void loop() {
  button1.loop(); // MUST call the loop() function first
  button2.loop();

  if(button1.isPressed())
    pressedTime = millis();

  if(button1.isReleased()) {
    releasedTime = millis();

    long pressDuration = releasedTime - pressedTime;

    if( pressDuration < SHORT_PRESS_TIME )
      Serial.println("A short press is detected");

    if( pressDuration > LONG_PRESS_TIME )
      Serial.println("A long press is detected");
  }
if(button2.isPressed())
    pressedTime = millis();

  if(button2.isReleased()) {
    releasedTime = millis();

    long pressDuration = releasedTime - pressedTime;

    if( pressDuration < SHORT_PRESS_TIME )
      Serial.println("A short press is detected");

    if( pressDuration > LONG_PRESS_TIME )
      Serial.println("A long press is detected");
  }

}