#include "DHT.h"
#include <LiquidCrystal_I2C.h>

#define DHTPIN 2     
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321

//lcd
#define I2C_ADDR    0x27
#define LCD_COLUMNS 16
#define LCD_LINES   4
LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

DHT dht(DHTPIN, DHTTYPE);



int val;    // dzwiek
int val1;   // temperatura
int val2;   // wilgotnosc

void setup() {
  Serial.begin(115200);
  Serial.println(F("DHT22 example!"));

  dht.begin();

  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(10, OUTPUT);
}

void loop() {
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  // Check if any reads failed and exit early (to try again).
  if (isnan(temperature) || isnan(humidity)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }

  Serial.print(F("Humidity: "));
  Serial.print(humidity);
  Serial.print(F("%  Temperature: "));
  Serial.print(temperature);
  Serial.println(F("°C "));

  // Wait a few seconds between measurements.
  delay(2000);

  // Tu ify temperatury
 
  // digitalWrite(12, HIGH);
  // digitalWrite(11, HIGH);
  // digitalWrite(10, HIGH);



  //potencjometr dzwiek
  val = analogRead(0);
  val = map(val, 0, 1023, 0, 180);   
  //potemcjometr temperatura 
  val1 = analogRead(1);
  val1 = map(val1, 0, 1023, 0, 100);
  // potencjomter 
  val2 = analogRead(2);
  val2 = map(val2, 0, 1023, 0, 100);   

  Serial.println(val);
  Serial.println(val1);
  Serial.println(val2);

  //sterownaie temperatura
  if(temperature>val1){
     digitalWrite(13, HIGH);
  }else{
     digitalWrite(13, LOW);
  }
  if(temperature<val1){
     digitalWrite(12, HIGH);
  }else{
     digitalWrite(12, LOW);
  }

  // setrowanie wiglotmoscia
  if(humidity>val2){
     digitalWrite(11, HIGH);
  }else{
     digitalWrite(11, LOW);
  }
  if(humidity<val2){
     digitalWrite(10, HIGH);
  }else{
     digitalWrite(10, LOW);
  }

  if(temperature>45){
    // Alarm na podstawie potencjometru
    Serial.print(F("ALARM"));
    tone(8, val, 250);
  }
    if(temperature<5){
    // Alarm na podstawie potencjometru
    Serial.print(F("ALARM"));
    tone(8, val, 250);
  }

   // Init
  lcd.init();
  lcd.backlight();

  // Print something
  lcd.setCursor(0, 0);
  lcd.print("tem_now:");
  lcd.setCursor(9, 0);
  lcd.print(temperature);
  lcd.setCursor(0, 1);
  lcd.print("hum_now:");
  lcd.setCursor(9, 1);
  lcd.print(humidity);
  lcd.setCursor(0, 2);
  lcd.print("tem_req:");
  lcd.setCursor(9, 2);
  lcd.print(val1);
  lcd.setCursor(0, 3);
  lcd.print("hum_req:");
  lcd.setCursor(9, 3);
  lcd.print(val2);
}