#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <dht.h>

LiquidCrystal_I2C lcd(0x3F, 16, 2);
dht DHT;

const int buzzerPin = 3;
const int tempThreshold = 20;

void setup() {
  lcd.init();
  lcd.backlight();

  pinMode(buzzerPin, OUTPUT);
}

void loop() {
  int chk = DHT.read22(D2);
  float temp = DHT.temperature;
  float hum = DHT.humidity;

  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(temp);
  lcd.print("C");

  lcd.setCursor(0, 1);
  lcd.print("MPU6050: ");
  lcd.print(analogRead(A0));
  lcd.print(", ");
  lcd.print(analogRead(A1));
  lcd.print(", ");
  lcd.print(analogRead(A2));

  if (temp > tempThreshold) {
    digitalWrite(buzzerPin, HIGH);
  } else {
    digitalWrite(buzzerPin, LOW);
  }

  delay(2000);
}