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	- Project: Temperature Display
	- Source Code compiled for: Arduino Uno
	- Source Code created on: 2023-12-09 14:43:01

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* At the transmitter arduino side nrf24l01 module */
	/* with DS18B20 waterproof transmitter should send */
	/* data to the Receiver side with lcd display */
	/* Receiver should receive and display it on LCD */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include <Arduino.h>
#include <Wire.h>
#include <DS18B20.h>
#include <LiquidCrystal_I2C.h>

/****** FUNCTION PROTOTYPES *****/
void setup();
void loop();
void printTemperature();

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t DS18B20_DQ_PIN = 2;

/***** DEFINITION OF I2C PINS *****/
const uint8_t LCD_I2C_PIN_SDA = A4;
const uint8_t LCD_I2C_PIN_SCL = A5;
const uint8_t LCD_I2C_SLAVE_ADDRESS = 0x27;

/****** DEFINITION OF LIBRARY CLASS INSTANCES*****/
DS18B20 ds(DS18B20_DQ_PIN);
LiquidCrystal_I2C lcd(LCD_I2C_SLAVE_ADDRESS, 16, 2);

void setup()
{
  // Initialize the digital input pin for DS18B20
  pinMode(DS18B20_DQ_PIN, INPUT);

  // Initialize the I2C communication
  Wire.begin();

  // Initialize the LCD display
  lcd.begin(16, 2);
  lcd.backlight();

  // Print initial message on LCD
  lcd.print("Receiver - NRF24L01");
  lcd.setCursor(0, 1);
  lcd.print("Waiting for data...");
}

void loop()
{
  // Read temperature from DS18B20
  float temperature = ds.getTempC();

  // Display temperature on LCD
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Temperature: ");
  lcd.print(temperature);
  lcd.print(" C");

  delay(2000);
}

void printTemperature()
{
  // Read temperature from DS18B20
  float temperature = ds.getTempC();

  // Print temperature via serial
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println(" C");
}