**Climate Control** rev_01

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    - Project: **Climate Control**
    - Source Code NOT compiled for: Arduino Uno
    - Source Code created on: 2024-12-06 17:43:04

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* The application must display real-time temperature */
    /* and humidity readings on a LiquidCrystal LCD, */
    /* leveraging the SimpleDHT library for sensor data */
    /* acquisition and ensuring accurate environmental */
    /* tracking. */
/****** END SYSTEM REQUIREMENTS *****/

/* START CODE */

/****** DEFINITION OF LIBRARIES *****/
#include <LiquidCrystal.h>  // Library for controlling LCDs
#include <SimpleDHT.h>  // Library for DHT sensor
#include <DHT.h> // Include DHT library

#define DHTPIN 2 // Define DHT11 data pin
#define DHTTYPE DHT11 // Define DHT11 sensor type

DHT dht(DHTPIN, DHTTYPE); // Initialize DHT11 sensor

LiquidCrystal lcd(12, 11, 5, 4, 3, 2); // Initialize LCD pins

int bulb1 = 6; // Define pin for first bulb
int bulb2 = 7; // Define pin for second bulb
int fan = 8; // Define pin for cooling fan

void setup(void)
{
    // Setup code to run once
    pinMode(bulb1, OUTPUT); // Set bulb1 pin as output
    pinMode(bulb2, OUTPUT); // Set bulb2 pin as output
    pinMode(fan, OUTPUT); // Set fan pin as output

    lcd.begin(16, 2); // Initialize LCD with 16 columns and 2 rows
    dht.begin(); // Initialize DHT11 sensor
}

void loop(void)
{
    // Main code to run repeatedly
    float temp = dht.readTemperature(); // Read temperature from DHT11 sensor
    float humidity = dht.readHumidity(); // Read humidity from DHT11 sensor

    lcd.setCursor(0, 0); // Set cursor to first column, first row
    lcd.print("Temp: "); // Print "Temp: " on LCD
    lcd.print(temp); // Print temperature value on LCD
    lcd.print(" C"); // Print " C" on LCD

    lcd.setCursor(0, 1); // Set cursor to first column, second row
    lcd.print("Humidity: "); // Print "Humidity: " on LCD
    lcd.print(humidity); // Print humidity value on LCD
    lcd.print("%"); // Print "%" on LCD

    if (temp < 36) { // If temperature is below 36 degrees Celsius
        digitalWrite(bulb1, HIGH); // Turn on first bulb
        digitalWrite(bulb2, HIGH); // Turn on second bulb
        digitalWrite(fan, LOW); // Turn off cooling fan
    } else if (temp > 42) { // If temperature exceeds 42 degrees Celsius
        digitalWrite(bulb1, LOW); // Turn off first bulb
        digitalWrite(bulb2, LOW); // Turn off second bulb
        digitalWrite(fan, HIGH); // Turn on cooling fan
    }

    delay(1000); // Delay for 1 second
}

/* END CODE */