#include<LiquidCrystal_I2C.h>  // จอ LCD
#include<DHT.h>   // ความชื้น & อุณหภูมิ
#define LED_R 25
#define LED_Y 26
#define LED_G 27
#define DHTpin 4
#define DHTtype DHT22
int i = 0;
LiquidCrystal_I2C lcd(0x27,16,2);
DHT dht(DHTpin,DHTtype);

void setup() {
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
//-------------ไฟเตือนความชื้น-----------
  pinMode(LED_R, OUTPUT);
  pinMode(LED_Y, OUTPUT);
  pinMode(LED_G, OUTPUT);
//------------------------------------
  dht.begin();
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("Hello, ESP32!");
}
/*
void LED(int i)
{
  char str[3][5] = {"LED_R","LED_Y","LED_G"};


}
*/
void loop() {
  // put your main code here, to run repeatedly:
  float tem = dht.readTemperature();
  float humidity = dht.readHumidity();
  lcd.setCursor(0,0);
  lcd.print("Temperature"+String(tem));
  lcd.setCursor(0,1);
  lcd.print("Humidity"+String(humidity));

  if(humidity >= 50)
  {
    digitalWrite(LED_R,1);
    digitalWrite(LED_Y,0);
    digitalWrite(LED_G,0);

  }else if(humidity >= 35)
  {
    digitalWrite(LED_R,0);
    digitalWrite(LED_Y,1);
    digitalWrite(LED_G,0);    
  }else
  {
    digitalWrite(LED_R,0);
    digitalWrite(LED_Y,0);
    digitalWrite(LED_G,1);    
  }
  
  delay(10); // this speeds up the simulation
}