funcionamiento basico del RF24L01 con arduino (Usando un LCD I2C en el receptor)

emisor.ino

#include <SPI.h>
// https://github.com/tmrh20/RF24
#include <nRF24L01.h>
#include <RF24.h>
// Conexiones
// http://www.bashmodulo.com/arduino/nrf24l01-radio-frequency-transmitter-receiver-on-arduino/
#define CE_PIN 9
#define CSN_PIN 10

const uint64_t pipe = 0xE8E8F0F0E1LL;

RF24 radio(CE_PIN, CSN_PIN);
unsigned long data;

void setup()
{
  radio.begin();
  radio.openWritingPipe(pipe);
}

void loop()
{
  data = millis();
  radio.write( &data , sizeof(data));
  delay(500);
}

NRF24L01-Receiver.jpg

receptor.ino

#include <SPI.h>
// https://github.com/tmrh20/RF24
#include <nRF24L01.h>
#include <RF24.h>
// Conexiones
// http://www.bashmodulo.com/arduino/nrf24l01-radio-frequency-transmitter-receiver-on-arduino/
#define CE_PIN 9
#define CSN_PIN 10

// LCD I2C
#include <Wire.h>
// https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);  // Set the LCD I2C address

const uint64_t pipe = 0xE8E8F0F0E1LL;

RF24 radio(CE_PIN, CSN_PIN);

unsigned long data;

void setup(){
  // LCD I2C
  lcd.begin(16,2);
  lcd.setCursor(0,0);
  // Esperemos un rato al emisor
  delay(1000);
  lcd.println("Nrf24L01 Receiver Starting");
  radio.begin();
  radio.openReadingPipe(1,pipe);
  radio.startListening();
}

void loop(){
  if ( radio.available() ){
    while (radio.available()){
      radio.read( &data, sizeof(data) );
      lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("T=");
      lcd.print(data);
    }
  }
  else{
    Serial.println("No radio available");
  }
}