#include <DHT22.h>
#define pinData 3
DHT22 dht22(pinData);

#include <LiquidCrystal.h>
const int rs = 12, en =11, d4 =7, d5 = 6, d6 = 5, d7 = 4;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup() {
 Serial.begin(9600);
 lcd.begin(16,2);
 lcd.clear();
 lcd.setCursor(0,0);
 lcd.print("NIELIT");  // put your setup code here, to run once:
}

void loop() {
   Serial.println(dht22.debug());// put your main code here, to run repeatedly:
float t = dht22.getTemperature();
float h = dht22.getHumidity();
if (dht22.getLastError() != dht22.OK){
  Serial.print("last error");
  Serial.println(dht22.getLastError());
}
  Serial.print("h=");Serial.print(h,1);Serial.print("/t");
  Serial.print("t=");Serial.print(t,1);
  delay(2000);
  lcd.clear();
  lcd.setCursor(0,0);lcd.print("Temp.");
lcd.setCursor(9,0);lcd.print("humi.");
lcd.setCursor(0,1);lcd.print(t);
lcd.setCursor(9,1);lcd.print(h);
delay(1000);
}