Arduino Curing Fridge

fridge.ino

//Libraries
#include <DHT.h>; //need for temp/hum sensor
//#include <Time.h> //need for timer
//#include <TimeLib.h> //need for timer
//#include <SPI.h>//not sure
#include <Wire.h>//not sure
#include "RTClib.h" //need for clock
#include <Adafruit_SSD1306.h> //need for display
//#include <Adafruit_GFX.h> //maybe not needed
//#include <gfxfont.h> // maybe not needed

//Constants
#define RELAY1 7      //Relay is connected to digipin 7
#define DHT1PIN 3     // what pin we're connected to
#define DHT2PIN 4     // what pin we're connected to
#define DHTTYPE DHT22   // DHT 22  (AM2302)
DHT dht1(DHT1PIN, DHTTYPE); //// Initialize DHT sensor for normal 16mhz Arduino
DHT dht2(DHT2PIN, DHTTYPE); //// Initialize DHT sensor for normal 16mhz Arduino

#define OLED_RESET 4
Adafruit_SSD1306 display(OLED_RESET);
RTC_DS3231 rtc;


//Variables
int chk;
int hum1;  //Stores humidity value
float temp1; //Stores temperature value
int hum2;  //Stores humidity value
float temp2; //Stores temperature value

void setup()
{
  pinMode(7,OUTPUT); //Pin for SSR Relay needs to be output
  Serial.begin(9600);
  dht1.begin();
  dht2.begin();

  if (rtc.lostPower()) {
    Serial.println("RTC lost power, lets set the time!");
    // 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));
  }
  
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);  // initialize with the I2C addr 0x3D (for the 128x64)
  display.display();
  delay(1000);

  // Clear the buffer.
  display.clearDisplay();
  // text display tests
      display.setTextSize(1);
  display.setTextColor(WHITE);
  //display.setTextSize(1);
  //display.setTextColor(WHITE);
  //display.setCursor(0,0);
  /* display.println("Hello, world!");
  display.setTextColor(BLACK, WHITE); // 'inverted' text
  display.println(3.141592);
  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.print("0x"); display.println(0xDEADBEEF, HEX);
  display.display();
  delay(2000);
  display.clearDisplay();*/
}

void loop()
{
    //Read data and store it to variables hum and temp
    hum1 = dht1.readHumidity();
    temp1 = dht1.readTemperature();
    hum2 = dht2.readHumidity();
    temp2 = dht2.readTemperature();
    DateTime now = rtc.now();

    // text display tests
    display.setCursor(0,0);
  
    //Print temp and humidity values to display
    display.print("H1: ");
    display.print(hum1); 
    display.print("% T1: ");
    display.print(temp1);
    display.println(" C");

    display.print("H2: ");
    display.print(hum2); 
    display.print("% T2: ");
    display.print(temp2);
    display.println(" C");

    display.print(now.hour(), DEC);
    display.print(':');
    display.print(now.minute(), DEC);
    display.print(':');
    display.print(now.second(), DEC);
    display.println();

    display.display();
    display.clearDisplay();

   

    //Serial.println(month());
    //digitalWrite(RELAY1,LOW); // Turns ON Relays 1
    
    //Serial.println("Light ON");
    
    delay(100); // Wait 2 seconds
    
    //digitalWrite(RELAY1,HIGH); // Turns Relay Off
    
    //Serial.println("Light OFF");
    
    //delay(2000);
    //while ((hum1 = dht1.readHumidity() ) > 80) { //using hum1 }
    /* if (hum1 > 80) {
      Serial.print("high hum!");
    } */
    //delay(2000); //Delay 2 sec.
    
}