Revise paste Climate Monitor rev_30

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- Project: Climate Monitor
	- Source Code NOT compiled for: Arduino Nano ESP32
	- Source Code created on: 2024-10-03 11:35:20

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* Initialize internal Bluetooth device as master, */
	/* receive BLE data, and show it on a 16x2 LCD using */
	/* LiquidCrystal library for Arduino. */
/****** SYSTEM REQUIREMENT 2 *****/
	/* read temperature and send it via bluetooth. */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include <Wire.h>
#include <LiquidCrystal.h>   // Library for controlling LCDs
#include <DS18B20.h>         // Library for DS18B20 temperature sensor
#include <DHT.h>             // Library for DHT temperature and humidity sensor
#include <BluetoothSerial.h> // Library for Bluetooth communication

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void updateOutputs();
void readTemperatureAndSend();

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t temp_DS18B20_DQ_PIN_D8 = 8; // DS18B20 data pin
const uint8_t temperatureSensor_DHT22_DOUT_PIN_D9 = 9; // DHT22 data pin

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t display_LCD1602_RS_PIN_D2 = 2; // LCD RS pin
const uint8_t display_LCD1602_E_PIN_D3 = 3; // LCD Enable pin
const uint8_t display_LCD1602_D4_PIN_D4 = 4; // LCD D4 pin
const uint8_t display_LCD1602_D5_PIN_D5 = 5; // LCD D5 pin
const uint8_t display_LCD1602_D6_PIN_D6 = 6; // LCD D6 pin
const uint8_t display_LCD1602_D7_PIN_D7 = 7; // LCD D7 pin

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
bool display_LCD1602_RS_PIN_D2_rawData = 0;
bool display_LCD1602_E_PIN_D3_rawData = 0;
bool display_LCD1602_D4_PIN_D4_rawData = 0;
bool display_LCD1602_D5_PIN_D5_rawData = 0;
bool display_LCD1602_D6_PIN_D6_rawData = 0;
bool display_LCD1602_D7_PIN_D7_rawData = 0;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
// Create an instance of the LiquidCrystal class
LiquidCrystal lcd(display_LCD1602_RS_PIN_D2, display_LCD1602_E_PIN_D3, display_LCD1602_D4_PIN_D4, display_LCD1602_D5_PIN_D5, display_LCD1602_D6_PIN_D6, display_LCD1602_D7_PIN_D7);

// Create an instance of the DS18B20 class
DS18B20 tempSensor(temp_DS18B20_DQ_PIN_D8);

// Create an instance of the DHT class
DHT dht(temperatureSensor_DHT22_DOUT_PIN_D9, DHT22); // DHT22 sensor

// Create an instance of the BluetoothSerial class
BluetoothSerial SerialBT;

void setup(void)
{
    // Initialize the LCD
    lcd.begin(16, 2); // Set up the LCD's number of columns and rows
    lcd.print("Initializing...");

// Initialize the temperature sensors
    dht.begin();
    tempSensor.begin();

// Initialize Bluetooth
    SerialBT.begin("ESP32_Master"); // Name of the Bluetooth device

// Set pin modes
    pinMode(temp_DS18B20_DQ_PIN_D8, INPUT);
    pinMode(temperatureSensor_DHT22_DOUT_PIN_D9, INPUT_PULLUP);
    pinMode(display_LCD1602_RS_PIN_D2, OUTPUT);
    pinMode(display_LCD1602_E_PIN_D3, OUTPUT);
    pinMode(display_LCD1602_D4_PIN_D4, OUTPUT);
    pinMode(display_LCD1602_D5_PIN_D5, OUTPUT);
    pinMode(display_LCD1602_D6_PIN_D6, OUTPUT);
    pinMode(display_LCD1602_D7_PIN_D7, OUTPUT);
}

void loop(void)
{
    // Update outputs and read temperature
    updateOutputs();
    readTemperatureAndSend();
    delay(2000); // Delay for stability
}

void updateOutputs()
{
    digitalWrite(display_LCD1602_RS_PIN_D2, display_LCD1602_RS_PIN_D2_rawData);
    digitalWrite(display_LCD1602_E_PIN_D3, display_LCD1602_E_PIN_D3_rawData);
    digitalWrite(display_LCD1602_D4_PIN_D4, display_LCD1602_D4_PIN_D4_rawData);
    digitalWrite(display_LCD1602_D5_PIN_D5, display_LCD1602_D5_PIN_D5_rawData);
    digitalWrite(display_LCD1602_D6_PIN_D6, display_LCD1602_D6_PIN_D6_rawData);
    digitalWrite(display_LCD1602_D7_PIN_D7, display_LCD1602_D7_PIN_D7_rawData);
}

void readTemperatureAndSend()
{
    // Read temperature from DHT sensor
    float temperature = dht.readTemperature();
    if (isnan(temperature)) {
        lcd.print("Failed to read temp");
    } else {
        lcd.setCursor(0, 1); // Move to the second line
        lcd.print("Temp: ");
        lcd.print(temperature);
        lcd.print(" C");

// Send temperature via Bluetooth
        SerialBT.print("Temperature: ");
        SerialBT.print(temperature);
        SerialBT.println(" C");
    }
}

/* END CODE */