#include <LiquidCrystal_I2C.h>
#include <Wire.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

int sigIn = 2;
int resetBtn = 3;
int event;
int eventLastState;
//int eventNewState;

void setup() {
  // put your setup code here, to run once:
  pinMode(sigIn, INPUT);
  pinMode(resetBtn, INPUT);
  event = 0;
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("TURNS = ");
  lcd.print(event);
  eventLastState = 1;
}

void loop() {
  // put your main code here, to run repeatedly:
  byte eventNewState = digitalRead(sigIn);
  delay(10);
  if(eventNewState == 0 && eventLastState == 1){
    eventLastState = eventNewState;
    event = event +1;
    lcd.setCursor(0,0);
    lcd.print("TURNS = ");
    lcd.print(event);
    }
    else if(eventNewState == 1 && eventLastState == 0){
    eventLastState = 1;
    }
  byte resetBtnState = digitalRead(resetBtn);
  if(resetBtnState == LOW){
    setup();
    }
}