//lab7 DHT22+LCD I2C
#include <LiquidCrystal_I2C.h>
#include "DHT.h"
#define DHTPIH 2
#define DHTTYPE DHT22

DHT dht(DHTPIH, DHTTYPE);
LiquidCrystal_I2C lcd(0x27,16,2);
void setup() {
  Serial.begin(9600);
  Serial.println("DHT22 test!");
  dht.begin();
  lcd.init();
  lcd.clear();
  lcd.setBacklight(1);
}
void loop() {

  lcd.setCursor(0,0);
  lcd.print("Humi =");
  lcd.setCursor(6,0);
  lcd.print((float)dht.readHumidity());
  lcd.print("%");
lcd.setCursor(0,1);
lcd.print("Temp =");
lcd.setCursor(6,1);
lcd.print((float)dht.readTemperature());
lcd.print("\337C");
delay(2500);
}