#include <LiquidCrystal.h>
#include <ezButton.h>

LiquidCrystal lcd(51, 53, 49, 47, 45, 43, 41);
ezButton button1(6);  // create ezButton object that attach to pin 6;
ezButton button2(5);  // create ezButton object that attach to pin 5;
 int count = 0;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);         // initialize serial
  lcd.begin(16,2);
  lcd.print("Hello, World!");
  lcd.setCursor(0,1);
  lcd.print("Counter: ");
  button1.setDebounceTime(50); // set debounce time to 50 milliseconds
  button2.setDebounceTime(50); // set debounce time to 50 milliseconds
}

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

  if(button1.isPressed()) {
    count = count + 1;
  }
  if(button2.isPressed()) {
    count = count - 1;
  }
  lcd.setCursor(9,1);
  lcd.print(count);  
}