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	- Project: Button Display
	- Source Code compiled for: Arduino Uno
	- Source Code created on: 2023-12-09 14:24:34

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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 <EasyButton.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

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

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t NRF24_MODULE_PUSHBUTTON_PIN_D2 = 2;
const uint8_t NRF24_MODULE_PUSHBUTTON_PIN_D3 = 3;
const uint8_t NRF24_MODULE_PUSHBUTTON_PIN_D4 = 4;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
EasyButton buttonD2(NRF24_MODULE_PUSHBUTTON_PIN_D2);
EasyButton buttonD3(NRF24_MODULE_PUSHBUTTON_PIN_D3);
EasyButton buttonD4(NRF24_MODULE_PUSHBUTTON_PIN_D4);

LiquidCrystal_I2C lcd(0x27, 16, 2); // Initialize the LCD object with I2C address 0x27, 16 columns and 2 rows

void setup(void)
{
  // put your setup code here, to run once:
  lcd.begin(16, 2); // Initialize the LCD
  lcd.print("Receiver Setup"); // Display a message on the LCD
  
  pinMode(NRF24_MODULE_PUSHBUTTON_PIN_D2, INPUT_PULLUP);
  pinMode(NRF24_MODULE_PUSHBUTTON_PIN_D3, INPUT_PULLUP);
  pinMode(NRF24_MODULE_PUSHBUTTON_PIN_D4, INPUT_PULLUP);
}

void loop(void)
{
  // put your main code here, to run repeatedly:

  // Button D2
  buttonD2.read();
  
  if (buttonD2.wasPressed()) {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Button D2 Pressed"); // Display a message on the LCD when button D2 is pressed
  }
  
  // Button D3
  buttonD3.read();
  
  if (buttonD3.wasPressed()) {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Button D3 Pressed"); // Display a message on the LCD when button D3 is pressed
  }
  
  // Button D4
  buttonD4.read();
  
  if (buttonD4.wasPressed()) {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Button D4 Pressed"); // Display a message on the LCD when button D4 is pressed
  }
}