Beat timer

// Beat timer v 1.0

#include <LiquidCrystal.h>
#include <Encoder.h>
#include "Timer.h"
#include <EEPROM.h>

#define bstop A1
#define bstart A0
#define bzero A2
#define valto A3
#define relay 4
#define siren 5

Encoder myEnc(2, 3);
Timer t;

long oldPosition  = -999;     // Encoder starting oldposition
int16_t tikktimeset = 500;    // Relay ticking time, 500=5,0 sec
uint16_t tikktimeactual = 0;
int relaytimeset = 50;        // Relay ontime
int relaytimeactual = 0;
uint16_t tikkcounter=0;
uint16_t tikkalarm = 999;     // Tick counter alarm
bool tikken = false;          // ON/OFF flag
bool relaystatus = false;
bool eepromchange = false;    // Need save parameter to EEPROM
uint16_t eepromtimeset = 1000;   // How long to wait to save your data
uint16_t eepromtimeactual = 0;

const int rs = 7, en = 8, d4 = 9, d5 = 10, d6 = 11, d7 = 12;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup() {
  pinMode(relay, OUTPUT);
  pinMode(siren, OUTPUT);
  pinMode(bstop, INPUT_PULLUP);
  pinMode(bstart, INPUT_PULLUP);
  pinMode(bzero, INPUT_PULLUP);
  pinMode(valto, INPUT_PULLUP);
  int tickEvent = t.every(10, tikk, (void*)2);
  Serial.begin(112500);
  Serial.println("Start ...");
  digitalWrite(relay,LOW);
  digitalWrite(siren,LOW);
  lcd.begin(16, 4);
  kezd();
}

void loop() {
  t.update();
  long newPosition = myEnc.read();
  if (newPosition != oldPosition) {
    oldPosition = newPosition;
    if (newPosition/4==1) {
      Serial.println("+");
      myEnc.write(0);
      if (digitalRead(bzero)==LOW) {
        tikkalarm++;
        if (tikkalarm>999) tikkalarm=999;
        lcd.setCursor(0, 3);
        lcd.print("Count: ");
        if (tikkcounter<100) lcd.print (" ");
        if (tikkcounter<10) lcd.print (" ");
        lcd.print(tikkcounter);
        lcd.print("/");
        if (tikkalarm<100) lcd.print (" ");
        if (tikkalarm<10) lcd.print (" ");
        lcd.print(tikkalarm);
        eepromchange=true;
        lcd.setCursor(15, 0);
        lcd.print("!");
      } else {
        if (digitalRead(valto)==LOW) {
          tikktimeset=tikktimeset+100;
        } else {
          tikktimeset++;
        }
        if (tikktimeset>9999) tikktimeset=9999;
        eepromchange=true;
        eepromtimeactual=0;
        float tmp1=tikktimeset;
        tmp1=tmp1/100;
        lcd.setCursor(10, 1);
        if (tikktimeset<1000) lcd.print(" ");
        lcd.print(tmp1);
        lcd.setCursor(15, 0);
        lcd.print("!");
      }
    }
    if (newPosition/4==-1) {
      Serial.println("-");
      myEnc.write(0);
      if (digitalRead(bzero)==LOW) {
        tikkalarm--;
        if (tikkalarm<1) tikkalarm=1;
        lcd.setCursor(0, 3);
        lcd.print("Count: ");
        if (tikkcounter<100) lcd.print (" ");
        if (tikkcounter<10) lcd.print (" ");
        lcd.print(tikkcounter);
        lcd.print("/");
        if (tikkalarm<100) lcd.print (" ");
        if (tikkalarm<10) lcd.print (" ");
        lcd.print(tikkalarm);
        eepromchange=true;
        lcd.setCursor(15, 0);
        lcd.print("!");
      } else {
      if (digitalRead(valto)==LOW) {
        tikktimeset=tikktimeset-100;
      } else {
        tikktimeset--;
      }
        if (tikktimeset<100) tikktimeset=100;
        eepromchange=true;
        eepromtimeactual=0;
        float tmp1=tikktimeset;
        tmp1=tmp1/100;
        lcd.setCursor(10, 1);
        if (tikktimeset<1000) lcd.print(" ");
        lcd.print(tmp1);
        lcd.setCursor(15, 0);
        lcd.print("!");
      }
    }
  }
  if (digitalRead(bstart)==LOW) {
    tikken=true;
    eepromchange=true;
    eepromtimeactual=0;
    lcd.setCursor(12, 0);
    lcd.print("ON ");
    Serial.println("Start");
    lcd.setCursor(15, 0);
    lcd.print("!");
    delay(500);
  }
  if (digitalRead(bstop)==LOW) {
    tikken=false;
    eepromchange=true;
    eepromtimeactual=0;
    lcd.setCursor(12, 0);
    lcd.print("OFF");
    Serial.println("Stop");
    lcd.setCursor(15, 0);
    lcd.print("!");
    digitalWrite(siren,LOW);
    delay(500);
  }
  if (digitalRead(valto)==LOW) {    //
    digitalWrite(siren,LOW);
  }
  if (digitalRead(bzero)==LOW) {
    digitalWrite(siren,LOW);
    tikkcounter=0;
    lcd.setCursor(0, 3);
    lcd.print("Count: ");
    if (tikkcounter<100) lcd.print (" ");
    if (tikkcounter<10) lcd.print (" ");
    lcd.print(tikkcounter);
    lcd.print("/");
    if (tikkalarm<100) lcd.print (" ");
    if (tikkalarm<10) lcd.print (" ");
    lcd.print(tikkalarm);
  }
}

void tikk() {
  if (tikken==true){
    tikktimeactual++;
    long tmp;
    tmp=(tikktimeset-tikktimeactual)/10+1;
    lcd.setCursor(12, 2);
    if (tmp<9) lcd.print(" ");
    lcd.print(tmp);
    lcd.print("  ");
    if (tikktimeactual >= tikktimeset) {
      tikktimeactual=0;
      relaystatus=true;
      digitalWrite(relay,HIGH);
      tikkcounter++;
      lcd.setCursor(0, 3);
      lcd.print("Count: ");
      if (tikkcounter<100) lcd.print (" ");
      if (tikkcounter<10) lcd.print (" ");
      lcd.print(tikkcounter);
      lcd.print("/");
      if (tikkalarm<100) lcd.print (" ");
      if (tikkalarm<10) lcd.print (" ");
      lcd.print(tikkalarm);
      if (tikkcounter>=tikkalarm) {
        digitalWrite(siren,HIGH);
        tikkcounter=0;
      }
      lcd.setCursor(15, 3);
      lcd.print("*");
    }
  }
  if (relaystatus==true) {
    relaytimeactual++;
    if (relaytimeactual >= relaytimeset) {
      relaytimeactual=0;
      relaystatus=false;
      digitalWrite(relay,LOW);
      lcd.setCursor(15, 3);
      lcd.print(" ");
    }
  }
  if (eepromchange==true) {
    eepromtimeactual++;
    if (eepromtimeactual >= eepromtimeset) {
      //Serial.println("EEPROM WRITE");
      eepromtimeactual=0;
      eepromchange=false;
      byte tmp1=0;
      if (tikken==true) tmp1=1;
      EEPROM.write(0,tmp1);
      tmp1=tikktimeset/256;
      EEPROM.write(2,tmp1);
      EEPROM.write(1,tikktimeset-tmp1*256);
      tmp1=tikkalarm/256;
      EEPROM.write(4,tmp1);
      EEPROM.write(3,tikkalarm-tmp1*256);
      //EEPROM.write(2,2);
      //EEPROM.write(1,2);
      lcd.setCursor(15, 0);
      lcd.print(" ");
    }
  }
}

void kezd() {
  byte tmp=EEPROM.read(1);
  tikktimeset=tmp+256*EEPROM.read(2);
  tmp=EEPROM.read(3);
  tikkalarm=tmp+256*EEPROM.read(4);
  tikken=false;
  if(EEPROM.read(0)==1) tikken=true;
  lcd.print("BEAT TIMER  ");
  lcd.setCursor(0, 1);
  lcd.print("Set timer:");
  lcd.setCursor(0, 2);
  lcd.print("Remaining:");
  lcd.setCursor(0, 3);
  lcd.print("Count: ");
  if (tikkcounter<100) lcd.print (" ");
  if (tikkcounter<10) lcd.print (" ");
  lcd.print(tikkcounter);
  lcd.print("/");
  if (tikkalarm<100) lcd.print (" ");
  if (tikkalarm<10) lcd.print (" ");
  lcd.print(tikkalarm);
  lcd.setCursor(12, 0);
  if (tikken==false) {
    lcd.print("OFF");
  } else {
    lcd.print("ON ");
  }
  float tmp1=tikktimeset;
  tmp1=tmp1/100;
  lcd.setCursor(10, 1);
  if (tikktimeset<1000) lcd.print(" ");
  lcd.print(tmp1);

}