// include LCD libraries for I2C
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,20,4);
//Function Names
int ledState=0;
int redPin=6;
int buttonPin=12;
int buttonNew;
int buttonPress;
int buttonOld=1;
int delayT=100;
int delayT1=150;
int cntUp;

void setup() {
//--------------------------

Serial.begin(9600);
pinMode(redPin, OUTPUT);
pinMode(buttonPin, INPUT);
// LCD setup
Wire.begin();
lcd.init();
lcd.backlight();
lcd.setCursor(5,0);
lcd.print("Hi AJ");
delay(2000);
lcd.clear();
}

void loop() {
 
 buttonNew=digitalRead(buttonPin);
 delay(3);
 if(buttonOld==0 && buttonNew==1){
   if(ledState==0){
     digitalWrite(redPin, HIGH);
     ledState=1;
      while(ledState==1 && cntUp<256){
       cntUp++;
       lcd.setCursor(0,0);
       lcd.print(cntUp);
       Serial.println(cntUp);
       delay(delayT1);
       buttonPress=digitalRead(buttonPin);
       delay(3);
        if(buttonPress==1){
          digitalWrite(redPin, LOW);
          lcd.setCursor(0,1);
          lcd.print("Counting Paused");
          ledState=0;
          delay(1000);
          lcd.setCursor(0,1);
          lcd.print("               ");
          
        }

     }

   }
  else{
    digitalWrite(redPin, LOW);
    ledState=0;

    }
 }
  buttonOld=buttonNew;
  delay(delayT);
}