/*
  Godzilla monitor v1. Monitor temperature and humidity with 2x DHT22's. Temperature parameters are >75 <90*F.
  Humidity parameters are >40 <60%. Humidity is controlled by a submersible waterpump that activates when humidity falls
  below 40%, connected to an IoT relay, should only need 1 relay switch. A UVB light is also connected to an IoT and will
  cycle between 12hrs on / 12hrs off, should also need 1 relay switch here as well. Temperature and humidity will be
  displayed on a 16x2 LCD. A red LED will illuminate when temp or humidity is out of parameters. A blue LED will
  illuminate when the water pump is active. A green LED will illuminate when a relay is activated.

  -Eventually I want to connect it to the internet, possibly a different arduino board.

  https://forum.arduino.cc/t/tortoise-terrarium-controller/1266256

*/

#include <DHT.h>
#include <LiquidCrystal.h>
#include "RTClib.h"
//#include <I2C_RTC.h> - not in sim
#include <time.h>


#define RED1_PIN 32
#define RED2_PIN 33
#define YEL1_PIN 34
#define YEL2_PIN 35
#define UV_PIN   30
#define REL2_PIN 31
#define PUMP1_PIN 36
#define PUMP2_PIN 40
#define DHT1_PIN 2
#define DHT2_PIN 3

#define DHTTYPE DHT22

//static DS3231 RTC;
RTC_DS1307 RTC;




//Type of DHT
DHT dht_1(DHT1_PIN, DHT22);
DHT dht_2(DHT2_PIN, DHT22);

//LED pins
//RED DHT1-32
//RED DHT2-33
//Yellow DHT1-34
//Yellow DHT2-35
//BLUE-36
//GREEN-31
//GREEN-30



//LCD signal pins
// initialize the library by associating any needed LCD interface pin
// with the arduino pin number it is connected to
const byte rs = 13, en = 12, d4 = 5, d5 = 6, d6 = 7, d7 = 8;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);


void setup() {
  Serial.begin(9600);
  //starting various things

//set pin modes..
  pinMode(RED1_PIN, OUTPUT);
  pinMode(RED2_PIN, OUTPUT);
  pinMode(YEL1_PIN, OUTPUT);
  pinMode(YEL2_PIN, OUTPUT);
  pinMode(UV_PIN, OUTPUT);
  pinMode(REL2_PIN, OUTPUT);
  pinMode(PUMP1_PIN, OUTPUT);
  pinMode(PUMP2_PIN, OUTPUT);

  //RTC Starting - MUST change time and day if changing program
  RTC.begin();

  //RTC.setHourMode(CLOCK_H24);

  //RTC.setDate(8,10,24);
  //RTC.setTime(19,16,30);

  if (! RTC.isrunning()) {
    Serial.println("RTC is NOT running, let's set the time!");
    // When time needs to be set on a new device, or after a power loss, the
    // following line sets the RTC to the date & time this sketch was compiled
    RTC.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // RTC.adjust(DateTime(2014, 1, 21, 3, 0, 0));
  }


  //DHTs Starting
  dht_1.begin();
  dht_2.begin();

  //LCD Start
  lcd.begin(16, 2);

  // Print a message to the LCD.
  lcd.print("Godzilla's House");
  delay(3000);
  lcd.clear();
  lcd.println("Since Apr30,2024");
  delay(3000);
  lcd.clear();

}

void loop() {
  // set the cursor to column 0, line 1
  // (note: line 1 is the second row, since counting begins with 0):
  lcd.setCursor(0, 0);

  //RTC calling date and time
  //switch (RTC.getWeek());

  DateTime now = RTC.now();


  Serial.print(now.hour());
  Serial.print(":");
  Serial.print(now.minute());
  Serial.print(":");
  Serial.print(now.second());
  Serial.print(" ");
  //RTC.startClock();

  Serial.println("Monitoring");

  //This is DHT_1
  // Reading temperature or humidity takes about 250 milliseconds!
  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
  float h = dht_1.readHumidity();
  // Read temperature as Celsius (the default)
  float t = dht_1.readTemperature();
  // Read temperature as Fahrenheit (isFahrenheit = true)
  float f = dht_1.readTemperature(true);
  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println(F("Failed to read from DHT_1!"));
    lcd.clear();
    lcd.println(F("Failed to read from DHT_1!"));
    return;
  }

  Serial.print(F("Hum1: "));
  Serial.print(h);
  Serial.print(F("%  Temp1: "));
  Serial.print(f);
  Serial.println(F("°F"));


  lcd.clear();
  lcd.setCursor(0, 0);//1st row
  lcd.print(F("Hum : ")); lcd.print(h);
  lcd.print(F("%"));
  lcd.setCursor(0, 1);//2nd row
  lcd.print(F("Temp: ")); lcd.print(f);
  lcd.print(F("F"));


  delay(600);

  //This is DHT_2
  // Reading temperature or humidity takes about 250 milliseconds!
  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
  float h2 = dht_2.readHumidity();
  // Read temperature as Celsius (the default)
  float t2 = dht_2.readTemperature();
  // Read temperature as Fahrenheit (isFahrenheit = true)
  float f2 = dht_2.readTemperature(true);

  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println(F("Failed to read from DHT_2!"));
    lcd.clear();
    lcd.println(F("Failed to read from DHT_2!"));
    return;
  }

  Serial.print(F("Hum2: "));
  Serial.print(h2);
  Serial.print(F("%  Temp2: "));
  Serial.print(f2);
  Serial.println(F("°F"));


  //If temp above 90 on DHT1/2 turn on Red LEDs
  if ( f > 90.00) digitalWrite(RED1_PIN, HIGH);
  else digitalWrite(RED1_PIN, LOW);
  if ( f2 > 90.00) digitalWrite(RED2_PIN, HIGH);
  else digitalWrite(RED2_PIN, LOW);

  //added lcd write for temp high
  if ( f > 90.00)
  {
    Serial.println("Temp1 High");
    lcd.clear();
    lcd.print("Temp1 High");
  }
  if ( f > 90.00)
  {
    Serial.println("Temp2 High");
    lcd.clear();
    lcd.print("Temp2 High");
  }
  delay(600);

  //IF Humidity below 40% turn on Yellow LEDs
  if ( h < 40 ) digitalWrite(YEL1_PIN, HIGH);
  else if (h > 58) digitalWrite(YEL1_PIN, LOW);
  if ( h2 < 40) digitalWrite(YEL2_PIN, HIGH);
  else if (h2 > 58) digitalWrite(YEL2_PIN, LOW);

  //Added lcd write for humidity high
  if ( h > 60) {
    Serial.println("Humidity1 High");
    lcd.clear();
    lcd.print("Humidity1 High");
  }
  if ( h2 > 60) {
    Serial.println("Humidity2 High");
    lcd.clear();
    lcd.print("Humidity2 High");
  }

  //Relay 1 for UVB light, 12hrs on, 12hrs off, 2 green LEDs show when active
  //12hrs in milliseconds: 43200000 ms
  if (now.hour() > 6 && now.hour() < 19)
    digitalWrite(UV_PIN, HIGH);
  else
    digitalWrite(UV_PIN, LOW);


  //Relay 2
  digitalWrite(REL2_PIN, HIGH);
  delay(50);
  digitalWrite(REL2_PIN, LOW);
  delay(1000);

  //Waterpump operation - Change parameters before going LIVE, currently set-up for testing
  if (h < 40 && h2 < 40) {
    digitalWrite(PUMP2_PIN, HIGH);
    digitalWrite(PUMP1_PIN, HIGH);
  }
  else if (h >= 60 && h2 >= 60) {
    (digitalWrite(PUMP2_PIN, LOW));
    digitalWrite(PUMP1_PIN, LOW);
  }


}