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	- Project: Temperature Bluetooth
	- Source Code compiled for: Arduino Nano ESP32
	- Source Code created on: 2024-10-02 23:16:55

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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>    // https://github.com/arduino-libraries/LiquidCrystal
#include <DS18B20.h>          // https://github.com/matmunk/DS18B20
#include <Adafruit_SSD1306.h> // https://github.com/stblassitude/Adafruit_SSD1306_Wemos_OLED.git
#include <U8g2_for_Adafruit_GFX.h> // https://github.com/olikraus/U8g2_for_Adafruit_GFX
#include <DHT.h>              // https://github.com/adafruit/DHT-sensor-library
#include "BluetoothController.h" // Include the header for the LCD controller

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void updateOutputs();
void sendTemperatureViaBluetooth(float temperature);

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
// The instances are already defined in BluetoothController.h, so we do not redefine them here.

void setup(void)
{
    Serial.begin(9600); // Initialize serial communication
    pinMode(temperatureSensor_DHT22_DOUT_PIN, INPUT_PULLUP);

    initializeLCD(); // Initialize the LCD display
    setupDS18B20(); // Setup DS18B20 sensor
    dht.begin(); // Initialize the DHT sensor

    display.begin(SSD1306_SWITCHCAPVCC, 0x3D); // Initialize the OLED display
    display.display(); // Clear the display
    delay(2000);
    display.clearDisplay();
}

void loop(void)
{
    updateOutputs(); // Refresh output data
    checkTemperature(); // Check temperature from DS18B20
}

void updateOutputs()
{
    // Example of updating LCD display
    lcd.setCursor(0, 0);
    lcd.print("Temp: ");
    float temperature = dht.readTemperature(); // Read temperature from DHT sensor
    lcd.print(temperature);
    lcd.print(" C");

    // Send temperature via Bluetooth
    sendTemperatureViaBluetooth(temperature);
}

void sendTemperatureViaBluetooth(float temperature)
{
    // Send the temperature data over Bluetooth
    Serial.print("Temperature: ");
    Serial.println(temperature);
}

/* END CODE */