#include <Servo.h>
#include <LiquidCrystal.h>
#include <Stepper.h>
#include  <TM1637Display.h> // Include library for 7-segment display (for common  TM1637 display)
#include <DHT.H>  // Library for DHT11 or DHT22 sensor

#define DHTPIN A0    // Pin where the DHT sensor is connected 
#define DHTTYPE DHT22  // Define the type of DHT sensor
LiquidCrystal lcd(7, 6, 5, 2, A4, A5);
const int StepsPerRevolution = 200;
Steeper myStepper(StepsPerRevolution,8, 9,10, 11);

DHT dht(DHTPIN, DHTTYPE); // Initialize DHT sensor
Servo myServo; // Create a Servo object
int pos = 0;

#define CLK 3  // Define 7-segment display pins (CLK for TM1637)
#define DIO    // Define  7-segment display pins (DIO for TM1637)
TM1637Display display(CLK, DIO); // Initialize display object


void setup() {

  pinMode(A2, OUTPUT);
  pinMode(A3, OUTPUT);
  myServo.attach(9); // Attach servo motor to pin 9
  display.setBrightness(0x0f); // Set maximum brightness for display

  dht.begin();    // Start DHT sensor
  Serial.begin(9600);  // Start serial communication for debugging
  myStepper.setSpeed(60); // Set the speed at 60rpm



}

    void loop() {
      float temperature =
      dht.readTemperature(); // Read temperature in Celcios
      float humidity = dht.readHumidity(); // Read humidity
      lcd.begin(16, 2);
      lcd.setCursor(0, 0);
      lcd.print("Temp is: ");
      lcd.print(temperature);
      lcd.setCursor(0, 1);
      lcd.print("Humid is: ");
      lcd.print(humidity);
      // Check if the reading is valid
       if (isnan(temperature)) {
        //Serial.println("Failed to read from the DHT sensor! ");
        return;
       }

        // Display temperature on 7-segment display
          int tempToDisplay = (int)temperature; // Convert temperature to integer
            display.showNumberDec(tempToDisplay); // Display temperature

            // Display on LCD


             // Control servo motor based on temperature
                if(temperature < 20) {
                  myServo.write(90);// Servo at 90 degrees

                  digitalWrite(A2, HIGH);
                  digitalWrite(A3, LOW);
                }
                  else if(temperature  >= 40){
                     
                     myServo.write(180); // Servo at 180 degrees
                      myStepper.step(StepsPerRevolution);
                      digitalWrite(A2, LOW);
                      digitalWrite(A3, HIGH);
                  }
                    
                    else {
                      myServo.write(180); // Servo at 180 degrees
                    }

                       delay(1); // Wait 1 second before updating again




    }