#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define WIDTH 128 // pixel ความกว้าง
#define HEIGHT 64 // pixel ความสูง 
#define RESET -1

#include <DHT.h>
#define DHTPin 8
#define DHTTYPE DHT22
float temp,humi;

Adafruit_SSD1306 OLED(WIDTH, HEIGHT, &Wire, RESET);
DHT dht(DHTPin,DHTTYPE);

void setup() {
  OLED.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  OLED.clearDisplay();
  dht.begin();

}

void loop() {
  dataTemp();
   OLED.display();
    delay(3000);
  

  dataHumi();
  OLED.display();
 delay(3000);



}
//---------------------------------------------------------------------------------
void dataTemp(){
  OLED.clearDisplay();
temp = dht.readTemperature();

if(isnan(temp)){
  Serial.println("failed to read from Tempurature");
  delay(200);
}
OLED.setTextColor(WHITE, BLACK);
  OLED.setTextSize(1); 
  OLED.setCursor(25, 5);
  OLED.println("TEMPURATURE");
   OLED.setTextSize(2);
  OLED.setCursor(25, 30);
  OLED.print(temp);
  OLED.setCursor(84, 25);
  OLED.print(" C");
  OLED.drawCircle(88, 25, 3, WHITE);
 
}
//-----------------------------------------------------------------------------------
void dataHumi(){
  OLED.clearDisplay();
humi = dht.readHumidity();

if(isnan(humi)){
  Serial.println("failed to read from Humidity");
  delay(200);
}
OLED.setTextColor(WHITE, BLACK);
  OLED.setTextSize(1); 
  OLED.setCursor(30, 5);
  OLED.println("HUMIDITY");
   OLED.setTextSize(2);
  OLED.setCursor(20, 25);
  OLED.print(humi);
  OLED.print("%RH");
 
}