#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#define DHTPIN 23
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2);
float temperature;
float humidity;
void setup() {
lcd.init();
lcd.backlight();
dht.begin();
}
void loop() {
lcd.setCursor(0,0);
temperature = dht.readTemperature();
humidity = dht.readHumidity();
lcd.print("Temp: ");
lcd.print(temperature);
lcd.print(" C");
delay(1000);
lcd.setCursor(0, 1);
lcd.print("Humi: ");
lcd.print(humidity);
delay(1000);
if (isnan(temperature)) {
lcd.setCursor(0, 0);
lcd.print("Error");
return;
}
if (isnan(humidity)) {
lcd.setCursor(0, 1);
lcd.print("Error");
return;
}
}