#include <SimpleRotary.h>
#include <LiquidCrystal_I2C.h>
#include <EEPROM.h>
LiquidCrystal_I2C lcd(0x27,16,4);
SimpleRotary rotary(3,4,5);
int CW;

unsigned long timeRef1,timeRef2,timeRef3 ;
int waitingTime =500, applicationTime = 200;

void setup(){
  lcd.begin(20,04);
  lcd.backlight();
Serial.begin(115200);
pinMode(2, INPUT);
pinMode(13, OUTPUT);
digitalWrite(13,LOW);

}
void loop(){
   byte i;

  // 0 = not turning, 1 = CW, 2 = CCW
  i = rotary.rotate();
  lcd.setCursor(2,0);
   lcd.print("TIMER");
   lcd.setCursor(4,1);
   lcd.print(applicationTime);

  if ( i == 1 ) {
    lcd.clear();
    CW++;
    if(CW>=10) CW =1;
    applicationTime = CW * 100;
    lcd.setCursor(4,1);
    lcd.print(applicationTime);
  }

  if ( i == 2 ) {
    lcd.clear();
    CW--;
    if(CW<=0)CW=9;
    applicationTime = CW * 100;
    lcd.setCursor(4,1);
    lcd.print(applicationTime);
  }

  
if(digitalRead(2)==HIGH){
 
 while(digitalRead(2)==HIGH){
  timeRef1=millis();
  while((millis()- timeRef1) < waitingTime){
  digitalWrite(13,LOW);
  }
  timeRef2 = millis();
  while ((millis()- timeRef2)<applicationTime && digitalRead(2)==HIGH){
  digitalWrite(13, HIGH);
  }
  digitalWrite(13, LOW);
  timeRef3=millis();
  while((millis()-timeRef3)<50){
    if(digitalRead(2)==HIGH){
      timeRef3=millis();
    }
  }
 }
  }
}