#include <Keypad.h>
#include <LiquidCrystal_I2C.h>
#include <RTClib.h>


RTC_DS1307 rtc;
char daysOfTheWeek[7][24] = {
  "Sunday",
  "Monday",
  "Tuesday",
  "Wednesday",
  "Thursday",
  "Friday",
  "Saturday"
};

long int hourToMinute;
long int hourToSec;
long int minuteToSec;
long int nowSec;
long int lastSec;

LiquidCrystal_I2C lcd(0x27, 20, 4); 

const int ROW_NUM = 5;
const int COLUMN_NUM = 4;

char keys[ROW_NUM][COLUMN_NUM] = {
  {'1','2','3','4'},
  {'5','6','7','8'},
  {'A','B','C','D'},
  {'E','F','G','H'},
  {'I','J','K','L'},
};

byte pin_rows[ROW_NUM] = {6, 5, 4, 3, 2}; //connect to the row pinouts of the keypad
byte pin_column[COLUMN_NUM] = {10, 9, 8, 7}; //connect to the column pinouts of the keypad

Keypad keypad = Keypad( makeKeymap(keys), pin_rows, pin_column, ROW_NUM, COLUMN_NUM );

#define LED1 22
#define LED2 23
#define LED3 24
#define LED4 25
#define LED5 26
#define LED6 27
#define LED7 28
#define LED8 29
#define LED_ATO 30
#define LED_AWC 31
#define LED_START 32
#define LED_STOP 33
#define LED_LIGHT 34
#define LED_F 35
#define LED_G 36
#define LED_CLEAR 37
#define LED_I 38
#define LED_J 39
#define LED_K 40
#define LED_L 41

int ato;
int awc;
int start;
int stop;
int clear;
int light;

int channelSelect[9];
#define txEnable 13
int address[10] = {
  10, 11, 12, 13, 14, 15, 16, 17, 18, 19
};
int addressHold;
char data[64] = {0};
int y100;
int y200;
float y[19];
int addressALL = 20;
int packet1 = 21;
int packet2 = 22;
int packet3 = 23;
int packet4 = 24;
int packet5 = 25;
int packet6 = 26;
int comRelease = 27;
int commandStart = 30;
int commandStop = 40;
int commandATO = 41;
int commandAWC = 42;
int timecodeSec = 55;
int commandEStop = 91;

int AWCStartTime[4] = {3,12,0,0}; // {Day,Hour,Minute,Second}
int ATOCycle_1[3] = {10,0,0}; // {Hour,Minute,Second}
int ATOCycle_2[3] = {14,0,0}; // {Hour,Minute,Second}
int ATOCycle_3[3] = {17,0,0}; // {Hour,Minute,Second}
int ATOCycle_4[3] = {20,0,0}; // {Hour,Minute,Second}
unsigned long ATOS;
unsigned long AWCS_1;
unsigned long AWCS_2;
unsigned long AWCS_3;
unsigned long AWCS_4;

unsigned long previousMillis;
unsigned long currentMillis;
const int duration_1 = 10000;
int w;
int x;
int initializerW;

unsigned long currentMillis_2;
int duration_2 = 1000; // ON time
int interval = 3000; // OFF time
unsigned long flashMillis;
int z;

int a;
int d;
int e;
int f;

void setup(){
  Serial.begin(9600);
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("Serial: Baud 9600");
  delay(1000);

  rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  if (! rtc.begin()) {
    abort();
    lcd.setCursor(0,1);
    lcd.print("Serial: Baud 9600");
  }
  else {
    lcd.setCursor(0,1);
    lcd.print("RTC Begin");
  }
  delay(1000);

  for(int i = 0; i < 9; i++) {
    channelSelect[i] = 0;
  }

  ato = 0;
  awc = 0;
  start = 0;
  stop = 0;
  clear = 0;
  w = 0;
  x = 0;
  z = 0;
  light = 0;

  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);
  pinMode(LED5, OUTPUT);
  pinMode(LED6, OUTPUT);
  pinMode(LED7, OUTPUT);
  pinMode(LED8, OUTPUT);

  pinMode(LED_ATO, OUTPUT);
  pinMode(LED_AWC, OUTPUT);
  pinMode(LED_START, OUTPUT);
  pinMode(LED_STOP, OUTPUT);
  pinMode(LED_LIGHT, OUTPUT);
  pinMode(LED_F, OUTPUT);
  pinMode(LED_G, OUTPUT);
  pinMode(LED_CLEAR, OUTPUT);
  pinMode(LED_I, OUTPUT);
  pinMode(LED_J, OUTPUT);
  pinMode(LED_K, OUTPUT);
  pinMode(LED_L, OUTPUT);

  digitalWrite(LED1, HIGH);
  digitalWrite(LED2, HIGH);
  digitalWrite(LED3, HIGH);
  digitalWrite(LED4, HIGH);
  digitalWrite(LED5, HIGH);
  digitalWrite(LED6, HIGH);
  digitalWrite(LED7, HIGH);
  digitalWrite(LED8, HIGH);
  delay(1000);
  digitalWrite(LED1, LOW);
  digitalWrite(LED2, LOW);
  digitalWrite(LED3, LOW);
  digitalWrite(LED4, LOW);
  digitalWrite(LED5, LOW);
  digitalWrite(LED6, LOW);
  digitalWrite(LED7, LOW);
  digitalWrite(LED8, LOW);
  delay(1000);
  digitalWrite(LED_ATO, HIGH);
  digitalWrite(LED_AWC, HIGH);
  digitalWrite(LED_START, HIGH);
  digitalWrite(LED_STOP, HIGH);
  digitalWrite(LED_LIGHT, HIGH);
  digitalWrite(LED_F, HIGH);
  digitalWrite(LED_G, HIGH);
  digitalWrite(LED_CLEAR, HIGH);
  digitalWrite(LED_I, HIGH);
  digitalWrite(LED_J, HIGH);
  digitalWrite(LED_K, HIGH);
  digitalWrite(LED_L, HIGH);
  delay(1000);
  digitalWrite(LED_ATO, LOW);
  digitalWrite(LED_AWC, LOW);
  digitalWrite(LED_START, LOW);
  digitalWrite(LED_STOP, LOW);
  digitalWrite(LED_LIGHT, LOW);
  digitalWrite(LED_F, LOW);
  digitalWrite(LED_G, LOW);
  digitalWrite(LED_CLEAR, LOW);
  digitalWrite(LED_I, LOW);
  digitalWrite(LED_J, LOW);
  digitalWrite(LED_K, LOW);
  digitalWrite(LED_L, LOW);

  DateTime now = rtc.now();
  hourToMinute = (now.hour() * 60);
  hourToSec = (hourToMinute * 60);
  minuteToSec = now.minute() * 60;
  nowSec = hourToSec + minuteToSec + now.second();
  lastSec = nowSec;
  lcd.setCursor(0,2);
  lcd.print(nowSec);
  delay(500);
  lcd.clear();

  ATOS = ((AWCStartTime[1] * 3600) + (AWCStartTime[2] * 60) + (AWCStartTime[3]));
  lcd.setCursor(0,0);
  lcd.print(ATOS);
  delay(2000);
  lcd.clear();
  AWCS_1 = ((ATOCycle_1[0] * 3600) + (ATOCycle_1[1] * 60) + ATOCycle_1[2]);
  lcd.setCursor(0,0);
  lcd.print(AWCS_1);
  AWCS_2 = ((ATOCycle_2[0] * 3600) + (ATOCycle_2[1] * 60) + ATOCycle_2[2]);
  lcd.setCursor(0,1);
  lcd.print(AWCS_2);
  AWCS_3 = ((ATOCycle_3[0] * 3600) + (ATOCycle_3[1] * 60) + ATOCycle_3[2]);
  lcd.setCursor(0,2);
  lcd.print(AWCS_3);
  AWCS_4 = ((ATOCycle_4[0] * 3600) + (ATOCycle_4[1] * 60) + ATOCycle_4[2]);
  lcd.setCursor(0,3);
  lcd.print(AWCS_4);
  delay(2000);
  lcd.clear();

  currentMillis = millis();
  previousMillis = currentMillis;
  initializerW = 0;

}

void loop(){
  DateTime now = rtc.now();
  hourToMinute = (now.hour() * 60);
  hourToSec = (hourToMinute * 60);
  minuteToSec = now.minute() * 60;
  nowSec = hourToSec + minuteToSec + now.second();
  if(nowSec == 0) {
    lastSec = nowSec;
  }

  KEY();
  serialCom();
  timerTimeout();
  timerFlash();
  xx();
  updateDisplay();

  if((w == 0) && (x == 1)) {
    for(int i = 0; i < 9; i++) {
      channelSelect[i] = 0;
    }
    ato = 0;
    awc = 0;
    start = 0;
    stop = 0;
    clear = 0;
    digitalWrite(LED1, LOW);
    digitalWrite(LED2, LOW);
    digitalWrite(LED3, LOW);
    digitalWrite(LED4, LOW);
    digitalWrite(LED5, LOW);
    digitalWrite(LED6, LOW);
    digitalWrite(LED7, LOW);
    digitalWrite(LED8, LOW);
    digitalWrite(LED_ATO, LOW);
    digitalWrite(LED_AWC, LOW);
    digitalWrite(LED_START, LOW);
    digitalWrite(LED_STOP, LOW);
    Serial.println("Timeout");
    x = 0;
  }

  if(light == 0) {
    digitalWrite(LED_LIGHT, LOW);
    e = 2;
  }
  else if(light == 1) {
    if(z == 1) {
      digitalWrite(LED_LIGHT, HIGH);
    }
    else if(z == 0) {
      digitalWrite(LED_LIGHT, LOW);
    }
    e = 0;
  }
  else if(light == 2) {
    digitalWrite(LED_LIGHT, HIGH);
    e = 1;
  }

  if(now.day() == 3 /*|| now.second() == 10*/) {
    if((nowSec == 43200) && (a == 0)) {

    }
  }


}

void KEY() {
  char key = keypad.getKey();

  if (key){
    //Serial.println(key);
    currentMillis = millis();
    previousMillis = currentMillis;

    if(key == '1') {
      channelSelect[1] = address[1];
      digitalWrite(LED1, HIGH);
      initializerW = 1;
      Serial.println(key);
    }
    else if(key == '2') {
      channelSelect[2] = address[2];
      digitalWrite(LED2, HIGH);
      initializerW = 1;
      Serial.println(key);
    }
    else if(key == '3') {
      channelSelect[3] = address[3];
      digitalWrite(LED3, HIGH);
      initializerW = 1;
      Serial.println(key);
    }
    else if(key == '4') {
      channelSelect[4] = address[4];
      digitalWrite(LED4, HIGH);
      initializerW = 1;
      Serial.println(key);
    }
    else if(key == '5') {
      channelSelect[5] = address[5];
      digitalWrite(LED5, HIGH);
      initializerW = 1;
      Serial.println(key);
    }
    else if(key == '6') {
      channelSelect[6] = address[6];
      digitalWrite(LED6, HIGH);
      initializerW = 1;
      Serial.println(key);
    }
    else if(key == '7') {
      channelSelect[7] = address[7];
      digitalWrite(LED7, HIGH);
      initializerW = 1;
      Serial.println(key);
    }
    else if(key == '8') {
      channelSelect[8] = address[8];
      digitalWrite(LED8, HIGH);
      initializerW = 1;
      Serial.println(key);
    }

    if(key == 'A') { // ATO
      ato = 1;
      awc = 0;
      digitalWrite(LED_ATO, HIGH);
      initializerW = 1;
      Serial.println("ATO");
    }
    else if(key == 'B') { //AWC
      ato = 0;
      awc = 1;
      digitalWrite(LED_AWC, HIGH);
      initializerW = 1;
      Serial.println("AWC");
    }

    if(key == 'C') {
      start = 1;
      digitalWrite(LED_START, HIGH);
      initializerW = 1;
      Serial.println("Start");
    }

    if(key == 'D') {
      stop = 1;
      digitalWrite(LED_STOP, HIGH);
      initializerW = 1;
      Serial.println("Stop");
    }

    if(key == 'E') {
      if(light == 0) {
        Serial.println("AUTO");
        light = 1;
      }
      else if(light == 1) {
        Serial.println("ON");
        light = 2;
      }
      else if(light == 2) {
        Serial.println("OFF");
        light = 0;
      }
    }

    if(key == 'H') {
      for(int i = 0; i < 9; i++) {
        channelSelect[i] = 0;
      }
      ato = 0;
      awc = 0;
      start = 0;
      stop = 0;
      clear = 0;
      digitalWrite(LED1, LOW);
      digitalWrite(LED2, LOW);
      digitalWrite(LED3, LOW);
      digitalWrite(LED4, LOW);
      digitalWrite(LED5, LOW);
      digitalWrite(LED6, LOW);
      digitalWrite(LED7, LOW);
      digitalWrite(LED8, LOW);
      digitalWrite(LED_ATO, LOW);
      digitalWrite(LED_AWC, LOW);
      digitalWrite(LED_START, LOW);
      digitalWrite(LED_STOP, LOW);
      Serial.println("Clear");
    }

  }
}

void serialCom() {

  byte n = Serial.available();
  if (n != 0) {
    byte m = Serial.readBytesUntil('\n', data, 64);
    data[m] = '\0'; //null-byte
    y100 = atoi(strtok(data, ","));
    y200 = atoi(strtok(NULL, ","));

    if(y100 == address[0]) {
      if(y200 == packet1) {
        y[1] = atof(strtok(NULL, ","));
        y[2] = atof(strtok(NULL, ","));
        y[3] = atof(strtok(NULL, ","));
        y[4] = atof(strtok(NULL, ","));
        y[5] = atof(strtok(NULL, ","));
      }
      if(y200 == packet2) {
        y[6] = atof(strtok(NULL, ","));
        y[7] = atof(strtok(NULL, ","));
        y[8] = atof(strtok(NULL, ","));
      }
      if(y200 == packet3) {
        y[9] = atof(strtok(NULL, ","));
        y[10] = atof(strtok(NULL, ","));
        y[11] = atof(strtok(NULL, ","));
      }
      if(y200 == packet4) {
        y[12] = atof(strtok(NULL, ","));
        y[13] = atof(strtok(NULL, ","));
        y[14] = atof(strtok(NULL, ","));
      }
      if(y200 == packet5) {
        y[15] = atof(strtok(NULL, ","));
        y[16] = atof(strtok(NULL, ","));
        y[17] = atof(strtok(NULL, ","));
      }
      if(y200 == packet6) {
        y[18] = atof(strtok(NULL, ","));
      }
    }
  }

  if((f == 1)) {
    digitalWrite(txEnable, HIGH);
    Serial.print(address[5]);
    Serial.print(",");
    Serial.print(packet1);
    Serial.print(",");
    Serial.print(commandStart);
    Serial.print(",");
    Serial.println(commandATO);
    digitalWrite(txEnable, LOW);
    
    f = 2;
  }
  else if((f == 2) && (y[1] == commandStop) && (y[2] == commandATO)) {
    digitalWrite(txEnable, HIGH);
    Serial.print(address[5]);
    Serial.print(",");
    Serial.print(packet1);
    Serial.print(",");
    Serial.print(commandStart);
    Serial.print(",");
    Serial.println(commandAWC);
    digitalWrite(txEnable, LOW);

    f = 3;
  }
  else if((y[1] == commandStop) && (y[2] == commandAWC)) {
    y[1] = 0;
    y[2] = 0;
    f = 0;
  }

  if(start == 1) {
    // ATO
    if((ato == 1) && (awc == 0)) {
      if(channelSelect[1] == address[1]) {
        Serial.print(address[1]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandATO);
        channelSelect[1] = 0;
        digitalWrite(LED1, LOW);
      }
      
      if(channelSelect[2] == address[2]) {
        Serial.print(address[2]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandATO);
        channelSelect[2] = 0;
        digitalWrite(LED2, LOW);
      }

      if(channelSelect[3] == address[3]) {
        Serial.print(address[3]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandATO);
        channelSelect[3] = 0;
        digitalWrite(LED3, LOW);
      }

      if(channelSelect[4] == address[4]) {
        Serial.print(address[4]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandATO);
        channelSelect[4] = 0;
        digitalWrite(LED4, LOW);
      }

      if(channelSelect[5] == address[5]) {
        Serial.print(address[5]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandATO);
        channelSelect[5] = 0;
        digitalWrite(LED5, LOW);
      }
      
      if(channelSelect[6] == address[6]) {
        Serial.print(address[6]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandATO);
        channelSelect[6] = 0;
        digitalWrite(LED6, LOW);
      }

      if(channelSelect[7] == address[7]) {
        Serial.print(address[7]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandATO);
        channelSelect[7] = 0;
        digitalWrite(LED7, LOW);
      }

      if(channelSelect[8] == address[8]) {
        Serial.print(address[8]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandATO);
        channelSelect[8] = 0;
        digitalWrite(LED8, LOW);
      }
      digitalWrite(LED_ATO, LOW);
      ato = 0; 
      awc = 0;
    }

    // AWC
    if((ato == 0) && (awc == 1)) {
      if(channelSelect[1] == address[1]) {
        Serial.print(address[1]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandAWC);
        channelSelect[1] = 0;
        digitalWrite(LED1, LOW);
      }
      
      if(channelSelect[2] == address[2]) {
        Serial.print(address[2]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandAWC);
        channelSelect[2] = 0;
        digitalWrite(LED2, LOW);
      }

      if(channelSelect[3] == address[3]) {
        Serial.print(address[3]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandAWC);
        channelSelect[3] = 0;
        digitalWrite(LED3, LOW);
      }

      if(channelSelect[4] == address[4]) {
        Serial.print(address[4]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandAWC);
        channelSelect[4] = 0;
        digitalWrite(LED4, LOW);
      }

      if(channelSelect[5] == address[5]) {
        Serial.print(address[5]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandAWC);
        channelSelect[5] = 0;
        digitalWrite(LED5, LOW);
      }
      
      if(channelSelect[6] == address[6]) {
        Serial.print(address[6]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandAWC);
        channelSelect[6] = 0;
        digitalWrite(LED6, LOW);
      }

      if(channelSelect[7] == address[7]) {
        Serial.print(address[7]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandAWC);
        channelSelect[7] = 0;
        digitalWrite(LED7, LOW);
      }

      if(channelSelect[8] == address[8]) {
        Serial.print(address[8]);
        Serial.print(",");
        Serial.print(packet1);
        Serial.print(",");
        Serial.print(commandStart);
        Serial.print(",");
        Serial.println(commandAWC);
        channelSelect[8] = 0;
        digitalWrite(LED8, LOW);
      }
      digitalWrite(LED_AWC, LOW);
      ato = 0; 
      awc = 0;
    }

    digitalWrite(LED_START, LOW);
    start = 0;
  }
  
}

void timerTimeout() {
  currentMillis = millis();
  
  if(initializerW == 1) {
    previousMillis = currentMillis;
    initializerW = 0;
    x = 1;
  }
  if(currentMillis < (previousMillis + duration_1)) {
    w = 1;
  }
  else if(currentMillis > (previousMillis + duration_1)) {
    w = 0;
  }

}

void timerFlash() {
  currentMillis_2 = millis();

  if(currentMillis_2 < (flashMillis + duration_2)) {
    z = 1;
  }
  else if(currentMillis_2 > (flashMillis + duration_2)) {
    if(currentMillis_2 < (flashMillis + duration_2 + interval)) {
      z = 0;
    }
    else if(currentMillis_2 >= (flashMillis + duration_2 + interval)) {
      flashMillis = currentMillis_2;
    }
  }  
}

void xx() {
  DateTime now = rtc.now();
  /*
  if(nowSec >= lastSec) {
    if((nowSec > lastSec) && (nowSec < (lastSec + 6)) && (d == 0)) {
      digitalWrite(txEnable, HIGH);
      Serial.print(addressALL);
      Serial.print(",");
      Serial.print(timecodeSec);
      Serial.print(",");
      if(nowSec < 10) {
        Serial.print("0000");
        Serial.println(nowSec);
      }
      else if(nowSec > 10 && nowSec < 100) {
        Serial.print("000");
        Serial.println(nowSec);
      }
      else if(nowSec > 100 && nowSec < 1000) {
        Serial.print("00");
        Serial.println(nowSec);
      }
      else if(nowSec > 1000 && nowSec < 10000) {
        Serial.print("0");
        Serial.println(nowSec);
      }
      else if(nowSec > 10000) {
        Serial.println(nowSec);
      }
      //Serial.println("");
      digitalWrite(txEnable, LOW);
      d = 1;
    }
    else if((nowSec > (lastSec + 6)) && (nowSec < (lastSec + 12)) && (d == 1)) {
      digitalWrite(txEnable, HIGH);
      Serial.print(addressALL);
      Serial.print(",");
      Serial.print(timecodeSec);
      Serial.print(",");
      if(nowSec < 10) {
        Serial.print("0000");
        Serial.println(nowSec);
      }
      else if(nowSec > 10 && nowSec < 100) {
        Serial.print("000");
        Serial.println(nowSec);
      }
      else if(nowSec > 100 && nowSec < 1000) {
        Serial.print("00");
        Serial.println(nowSec);
      }
      else if(nowSec > 1000 && nowSec < 10000) {
        Serial.print("0");
        Serial.println(nowSec);
      }
      else if(nowSec > 10000) {
        Serial.println(nowSec);
      }
      //Serial.println("");
      digitalWrite(txEnable, LOW);
      d = 2;
    }
    else if((nowSec > (lastSec + 12)) && (nowSec < (lastSec + 18)) && (d == 2)) {
      digitalWrite(txEnable, HIGH);
      Serial.print(addressALL);
      Serial.print(",");
      Serial.print(timecodeSec);
      Serial.print(",");
      if(nowSec < 10) {
        Serial.print("0000");
        Serial.println(nowSec);
      }
      else if(nowSec > 10 && nowSec < 100) {
        Serial.print("000");
        Serial.println(nowSec);
      }
      else if(nowSec > 100 && nowSec < 1000) {
        Serial.print("00");
        Serial.println(nowSec);
      }
      else if(nowSec > 1000 && nowSec < 10000) {
        Serial.print("0");
        Serial.println(nowSec);
      }
      else if(nowSec > 10000) {
        Serial.println(nowSec);
      }
      //Serial.println("");
      digitalWrite(txEnable, LOW);
      d = 3;
    }
    else if((nowSec > (lastSec + 18)) && (nowSec < (lastSec + 24)) && (d == 3)) {
      digitalWrite(txEnable, HIGH);
      Serial.print(addressALL);
      Serial.print(",");
      Serial.print(timecodeSec);
      Serial.print(",");
      if(nowSec < 10) {
        Serial.print("0000");
        Serial.println(nowSec);
      }
      else if(nowSec > 10 && nowSec < 100) {
        Serial.print("000");
        Serial.println(nowSec);
      }
      else if(nowSec > 100 && nowSec < 1000) {
        Serial.print("00");
        Serial.println(nowSec);
      }
      else if(nowSec > 1000 && nowSec < 10000) {
        Serial.print("0");
        Serial.println(nowSec);
      }
      else if(nowSec > 10000) {
        Serial.println(nowSec);
      }
      //Serial.println("");
      digitalWrite(txEnable, LOW);
      d = 4;
    }
    else if(nowSec >= (lastSec + 24)) {
      lastSec = nowSec;
      d = 0;
    }
  }
  */

  if((now.second() == 0) || (now.second() == 30)) {
    if(d == 0) {
      digitalWrite(txEnable, HIGH);
      Serial.print(addressALL);
      Serial.print(",");
      Serial.print(timecodeSec);
      Serial.print(",");
      if(nowSec < 10) {
        Serial.print("0000");
        Serial.println(nowSec);
      }
      else if(nowSec > 10 && nowSec < 100) {
        Serial.print("000");
        Serial.println(nowSec);
      }
      else if(nowSec > 100 && nowSec < 1000) {
        Serial.print("00");
        Serial.println(nowSec);
      }
      else if(nowSec > 1000 && nowSec < 10000) {
        Serial.print("0");
        Serial.println(nowSec);
      }
      else if(nowSec > 10000) {
        Serial.println(nowSec);
      }
      //Serial.println("");
      digitalWrite(txEnable, LOW);
      d = 1;
    }
  }
  else if((now.second() != 0) && (now.second() != 30)) {
    d = 0;
  }

}

void updateDisplay() {
  DateTime now = rtc.now();

  lcd.setCursor(0,0);
  if(now.month() < 10){
    lcd.print("0");
    lcd.print(now.month());
  }
  else {
    lcd.print(now.month());
  }
  lcd.print("/");
  if(now.day() < 10){
    lcd.print("0");
    lcd.print(now.day());
  }
  else {
    lcd.print(now.day());
  }
  lcd.print("/");
  lcd.print(now.year());
  lcd.print("  ");

  if(now.hour() < 10){
    lcd.print("0");
    lcd.print(now.hour());
  }
  else {
    lcd.print(now.hour());
  }
  lcd.print(":");
  if(now.minute() < 10){
    lcd.print("0");
    lcd.print(now.minute());
  }
  else {
    lcd.print(now.minute());
  }
  lcd.print(":");
  if(now.second() < 10){
    lcd.print("0");
    lcd.print(now.second());
  }
  else {
    lcd.print(now.second());
  }

  /* hourToMinute = (now.hour() * 60);
  hourToSec = (hourToMinute * 60);
  minuteToSec = now.minute() * 60;
  nowSec = hourToSec + minuteToSec + now.second(); */

  /*
  lcd.setCursor(0,1);
  lcd.print(now.hour()); lcd.print(" "); lcd.print(hourToSec);
  lcd.setCursor(0,2);
  lcd.print(now.minute()); lcd.print(" "); lcd.print(minuteToSec);
  lcd.setCursor(0,3);
  lcd.print(now.second()); lcd.print("   "); lcd.print(nowSec);
  */

  lcd.setCursor(0,1);
  //Sunday (6 spaces)
  if(now.dayOfTheWeek() == 0) {
    lcd.print(daysOfTheWeek[now.dayOfTheWeek()]);
    lcd.print("      ");
  }
  //Monday (6 spaces)
  if(now.dayOfTheWeek() == 1) {
    lcd.print(daysOfTheWeek[now.dayOfTheWeek()]);
    lcd.print("      ");
  }
  //Tuesday (5 spaces)
  if(now.dayOfTheWeek() == 2) {
    lcd.print(daysOfTheWeek[now.dayOfTheWeek()]);
    lcd.print("     ");
  }
  //Wednesday (3 spaces)
  if(now.dayOfTheWeek() == 3) {
    lcd.print(daysOfTheWeek[now.dayOfTheWeek()]);
    lcd.print("   ");
  }
  //Thursday (4 spaces)
  if(now.dayOfTheWeek() == 4) {
    lcd.print(daysOfTheWeek[now.dayOfTheWeek()]);
    lcd.print("    ");
  }
  //Friday (6 spaces)
  if(now.dayOfTheWeek() == 5) {
    lcd.print(daysOfTheWeek[now.dayOfTheWeek()]);
    lcd.print("      ");
  }
  //Saturday (4 spaces)
  if(now.dayOfTheWeek() == 6) {
    lcd.print(daysOfTheWeek[now.dayOfTheWeek()]);
    lcd.print("    ");
  }


  if(nowSec < 10) {
    lcd.print("0000");
    lcd.print(nowSec);
  }
  else if(nowSec > 10 && nowSec < 100) {
    lcd.print("000");
    lcd.print(nowSec);
  }
  else if(nowSec > 100 && nowSec < 1000) {
    lcd.print("00");
    lcd.print(nowSec);
  }
  else if(nowSec > 1000 && nowSec < 10000) {
    lcd.print("0");
    lcd.print(nowSec);
  }
  else if(nowSec > 10000) {
    lcd.print(nowSec);
  }

  lcd.setCursor(8,2);
  if(e == 0) {
    lcd.print("Light Auto");
  }
  else if(e == 1) {
    lcd.print("Light On  ");
  }
  else if(e == 2) {
    lcd.print("Light Off ");
  }
  
}