#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#include <Servo.h>
LiquidCrystal_I2C lcd(0x27,16,2);   //显示屏
DHT dht(12,DHT22);   //温湿度传感器
Servo ser1;   //空调
Servo ser2;   //暖气

void setup() {
  lcd.init();
  dht.begin();
  ser1.attach(11);
  ser2.attach(10);
  pinMode(13, OUTPUT);   //初始化led灯
  ser1.write(0);         //初始化空调
  ser2.write(0);         //初始化暖气
  // put your setup code here, to run once:

}

void loop() {
  float t=dht.readTemperature();
  lcd.setCursor(1,0);
  lcd.print("T:");
  lcd.print(t);
//通过温度判断开暖气或空调
  if(t<23)
  {
     ser2.write(180);   //暖气开
     ser1.write(0);     //空调关
     digitalWrite(13, HIGH);
  }

  if(t>27)
  {
     ser1.write(180);   //空调开
     ser2.write(0);     //暖气关
     digitalWrite(13, HIGH);
  }

  if(t>=23&&t<=27)
  {
    digitalWrite(13,LOW);
  }
 
  // put your main code here, to run repeatedly:

}