#include "DHT.h"
#include <LiquidCrystal.h>
#include <Servo.h>
#include <Stepper.h>

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


DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal lcd(12, 11, 10, 9, 8, 7);
Servo myservo;  // create servo object to control a servo
Servo myservo1;  // create servo object to control a servo
int pos = 0;    // variable to store the servo position

const int stepsPerRevolution = 200;  // change this to fit the number of steps per revolution
// initialize the stepper library on pins 8 through 11:
Stepper myStepper(stepsPerRevolution, 0, 1, 4, 6);

void setup() {
  Serial.begin(115200);
  Serial.println(F("Auduino Uno Demo for Group L01-B04"));

  dht.begin();
  lcd.begin(16, 2);
  // you can now interact with the LCD, e.g.:
  lcd.print("Group L01-B04");
  myservo.attach(3);  // attaches the servo on pin 3 to the servo object
  myservo1.attach(5);  // attaches the servo on pin 3 to the servo object

  // set the speed at 60 rpm:
  myStepper.setSpeed(60);
  // initialize the serial port:
  //Serial.begin(9600);

}

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 "));
  
  lcd.clear();
  lcd.setCursor(0, 0); //(column 0-15, line 0-1)
  lcd.print("Temperature:");
  lcd.print(temperature);
  lcd.setCursor(0, 1); //(column 0-15, line 0-1)
  lcd.print("Humidity:");
  lcd.print(humidity);



  
  if (temperature>=40) { // >= more , == equal, <= less
    Serial.println(F("Alert! Hot"));
    tone(13, 262, 250); // Plays 262Hz tone for 0.250 seconds

    for (pos = 0; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees
    // in steps of 1 degree
      myservo.write(pos);              // tell servo to go to position in variable 'pos'
      delay(15);                       // waits 15ms for the servo to reach the position
    }
    for (pos = 180; pos >= 0; pos -= 1) { // goes from 180 degrees to 0 degrees
      myservo.write(pos);              // tell servo to go to position in variable 'pos'
      delay(15);                       // waits 15ms for the servo to reach the position
    }
    
  }

  if (temperature<=10) { // >= more , == equal, <= less
    Serial.println(F("Alert! Cold"));
    tone(13, 1262, 250); // Plays 262Hz tone for 0.250 seconds
    
    for (pos = 0; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees
    // in steps of 1 degree
      myservo1.write(pos);              // tell servo to go to position in variable 'pos'
      delay(15);                       // waits 15ms for the servo to reach the position
    }
    for (pos = 180; pos >= 0; pos -= 1) { // goes from 180 degrees to 0 degrees
      myservo1.write(pos);              // tell servo to go to position in variable 'pos'
      delay(15);                       // waits 15ms for the servo to reach the position
    }
    
  }

  if (temperature>=50) { // >= more , == equal, <= less
       
    // step one revolution  in one direction:
    Serial.println("clockwise");
    myStepper.step(stepsPerRevolution);
    delay(500);

    // step one revolution in the other direction:
    Serial.println("counterclockwise");
    myStepper.step(-stepsPerRevolution);
    delay(500);
    
  }

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