#include <Button.h>

int const BLINK_PIN = 13;

Button button5(5); // button setup on pin 5
bool blinkState = false; // state to switch blink

void setup() {
  Serial.begin(9600);
  pinMode(BLINK_PIN, OUTPUT);
  button5.begin();
}

void loop() {
  // if you press button state switches
  if (button5.pressed()) 
  {
    blinkState = !blinkState;
  }

  // display state by using diode
  digitalWrite(BLINK_PIN, blinkState ? HIGH : LOW);
}