#include <Servo.h>
#include "DHT.h"
#define DHTPIN 2 
#define DHTTYPE DHT22
DHT dht(DHTPIN,DHTTYPE);

float hum;
float temp;

int led1=11;
int led2=12;
int led3=13;

int relay1=8;
int relay2=9;
int relay3=10;

Servo myservo;

#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);



void setup() {
  Serial.begin(9600);
  Serial.println("ตรวจสอบความชื้อและอุณหภูมิ");
  dht.begin();
  pinMode(relay1,OUTPUT);
  pinMode(relay2,OUTPUT);
  pinMode(relay3,OUTPUT);

  pinMode(led1,OUTPUT);
  pinMode(led2,OUTPUT);
  pinMode(led3,OUTPUT);

  myservo.attach(3);

  lcd.init();
  lcd.backlight();
  lcd.setCursor(5,0);
  lcd.print("VIEWWY");

  lcd.setCursor(2,10);
  lcd.print("SE.2/2 NO.13");
  delay(3000);
  lcd.clear();

  lcd.init();
  lcd.backlight();
  lcd.setCursor(3,0);
  lcd.print("Humidity &");

  lcd.setCursor(2,10);
  lcd.print("Temperature");
  delay(3000);
  lcd.clear();
}

void loop() {
  delay(1000);
  hum=dht.readHumidity();
  temp=dht.readTemperature();

  Serial.print("Humidity: ");
  Serial.print(hum);
  Serial.print("% , Temp:");
  Serial.print(temp);
  Serial.println("Celsius: ");

  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("Humidity:");

  lcd.setCursor(9,0);
  lcd.print(hum);
  lcd.setCursor(15,0);
  lcd.print("%");

  lcd.setCursor(2,1);
  lcd.print("Temp:");

  lcd.setCursor(7,1);
  lcd.print(temp);
  lcd.setCursor(13,1);
  lcd.print("C.");

if (hum>=40&&hum<=60){
  myservo.write(90);
  digitalWrite(led1,1);
  digitalWrite(led2,0);
  digitalWrite(led3,0);
}
else if (hum>60&&hum<=100){
  myservo.write(45);
  digitalWrite(led1,0);
  digitalWrite(led2,1);
  digitalWrite(led3,0);
}
else {
  myservo.write(180);
  digitalWrite(led1,0);
  digitalWrite(led2,0);
  digitalWrite(led3,1);
}


if (temp>=0&&temp<=20){
  digitalWrite(relay1,1);
  digitalWrite(relay2,0);
  digitalWrite(relay3,0);
}
else if (temp>=20&&temp<=40){
  digitalWrite(relay1,0);
  digitalWrite(relay2,1);
  digitalWrite(relay3,0);
}
else if (temp>=40&&temp<=50){
  digitalWrite(relay1,0);
  digitalWrite(relay2,0);
  digitalWrite(relay3,1);
}
else{
  digitalWrite(relay1,0);
  digitalWrite(relay2,0);
  digitalWrite(relay3,0);
}
}