#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <DHT.h>


#define DHTPIN 5
#define DHTTYPE DHT22
DHT dht22(DHTPIN, DHTTYPE);

#define SCREEN_I2C_ADDR 0x3C // or 0x3C
#define SCREEN_WIDTH 128     // OLED display width, in pixels
#define SCREEN_HEIGHT 64     // OLED display height, in pixels
#define OLED_RST_PIN -1      // Reset pin (-1 if not available)

Adafruit_SSD1306 display(128, 64, &Wire, OLED_RST_PIN);


void setup() {
  Serial.begin(115200);
  display.begin(SSD1306_SWITCHCAPVCC, SCREEN_I2C_ADDR);
  display.clearDisplay();
  dht22.begin();
  //SHT31.begin(0X44);
  display.display();
}

void loop() {
  //float hum = SHT31.readHumidity();
  //float temp = SHT31.readTemperature();
  float hum = dht22.readHumidity();
  float temp = dht22.readTemperature();

  if (isnan(hum) || isnan(temp)) {
  Serial.println(F("Failed to read from DHT sensor!"));
  //Serial.println(F("Failed to read from SHT31 sensor!"));
  return;
  }
  else {
  if (temp < 26){
  Serial.print(F("Humidity: "));
  Serial.print(hum);
  Serial.print(" % ");
  Serial.print(F(" Temperature: เย็น "));
  Serial.print(temp);
  Serial.print(F(" °C "));
  
  }
  else if (temp >= 26  && temp <= 28){
  Serial.print(F("Humidity: "));
  Serial.print(hum);
  Serial.print(" % "); 
  Serial.print(F(" Temperature: กลาง "));
  Serial.print(temp);
  Serial.print(F(" °C "));
  }
  else {
  Serial.print(F("Humidity: "));
  Serial.print(hum);
  Serial.print(" % ");
  Serial.print(F(" Temperature: ร้อน "));
  Serial.print(temp);
  Serial.print(F(" °C ")); 
  }
}
}