#include "DHT.h"
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SH1106.h>

#define DHTPIN 2     // Digital pin connected to the DHT sensor

#define DHTTYPE DHT11   //#define DHTTYPE DHT11   // DHT 11
DHT dht(2, DHTTYPE);

// กำหนดขาต่อ I2C กับจอ OLED
#define OLED_RESET 4 
Adafruit_SH1106 display(OLED_RESET);


void setup() {
  Serial.begin(9600);
  dht.begin();
  display.begin(SH1106_SWITCHCAPVCC, 0x3C);
  display.display();
  display.clearDisplay(); // ลบภาพในหน้าจอทั้งหมด
}

void loop() {
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  float f = dht.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 sensor!"));
    return;
  }
  Serial.print("Humidity: ");
  Serial.print(h);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(t);
  Serial.print(" *c");
  Serial.print("\n");
  delay(500);
  
  display.setTextSize(0.5);
  display.setCursor(0,0);
  display.setTextColor(WHITE); //กำหนดข้อความสีขาว 
  display.print("\n Humidity:");
  if(h <= 30){
  display.println(" low");
  }
  else if (h >= 50){
  display.println(" High");
  }

  display.print("Temperature:");
  if(t <= 12){
  display.println(" Cool");
  }
  else if (t >= 32){
  display.println(" Hot");
  }

  else {
  display.println(" Good");
  }

  display.display(); // สั่งให้จอแสดงผล
  delay(500);

  }