#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <DHT.h>
#include <DHT_U.h>
#include <RTClib.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET    -1
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

#define DHTPIN1 2
#define DHTPIN2 3
#define DHTTYPE DHT22

DHT dht1(DHTPIN1, DHTTYPE);
DHT dht2(DHTPIN2, DHTTYPE);

RTC_DS3231 rtc;

void setup() {
  Serial.begin(9600);
  dht1.begin();
  dht2.begin();
  rtc.begin();
  
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { 
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
  display.display();
  delay(2000);
  display.clearDisplay();

  if (!rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }
}

void loop() {
  float tempC1 = dht1.readTemperature();
  float hum1 = dht1.readHumidity();
  float tempC2 = dht2.readTemperature();
  float hum2 = dht2.readHumidity();

  float tempF1 = tempC1 * 9.0 / 5.0 + 32.0;
  float tempF2 = tempC2 * 9.0 / 5.0 + 32.0;

  DateTime now = rtc.now();

  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(SSD1306_WHITE);

  display.setCursor(0, 0);
  display.print("Inside: ");
  display.print(tempF1);
  display.print(" F");
  
  display.setCursor(0, 10);
  display.print("Hum1: ");
  display.print(hum1);
  display.print(" %");
  
  display.setCursor(0, 20);
  display.print("Outside: ");
  display.print(tempF2);
  display.print(" F");
  
  display.setCursor(0, 30);
  display.print("Hum2: ");
  display.print(hum2);
  display.print(" %");

  display.setCursor(0, 40);
  display.print("Time: ");
  display.print(now.hour());
  display.print(":");
  display.print(now.minute());
 
  
  display.display();
  delay(2000);
}