nRF24 Project

First connect the nRF24L01+ Transceiver Module to an Arduino microcontroller, set up 2, one as Transmitter and other as Receiver.

CAUTION the current VCC is in 3.3v only

Primero conecte el Módulo Transceptor nRF24L01 + a un microcontrolador Arduino, configure 2, uno como Transmisor y otro como Receptor.

CUIDADO la corriente VCC es en 3.3v únicamente

then download and install the nRF24 library https://github.com/nRF24/RF24

Luego descargue e instale la Libreria nRF24 https://github.com/nRF24/RF24

#include "RF24.h"

RF24 myRadio (7, 8); // in Mega can use> (48, 49);

byte addresses[][6] = {"0"};

struct package

  int id=1;

  float temperature = 18.3;

  char  text[100] = "Text to be transmitted";

};

typedef struct package Package;

Package data;

void setup()

  Serial.begin(115200);

  delay(100);

  myRadio.begin();

  myRadio.setChannel(115);

  myRadio.setPALevel(RF24_PA_MAX);

  myRadio.setDataRate( RF24_250KBPS ) ;

  myRadio.openWritingPipe( addresses[0]);

void loop()

  myRadio.write(&data, sizeof(data));

  Serial.print("\nPackage:");

  Serial.print(data.id);

  Serial.print("\n");

  Serial.println(data.temperature);

  Serial.println(data.text);

  data.id = data.id + 1;

  data.temperature = data.temperature+0.1;

  delay(50);

#include "RF24.h"

RF24 myRadio (7, 8); // in Mega can use> (48, 49);

byte addresses[][6] = {"0"};

struct package

  int id=0;

  float temperature = 0.0;

  char  text[100] ="empty";

};

typedef struct package Package;

Package data;

void setup()

  Serial.begin(115200);

  delay(100);

  myRadio.begin();

  myRadio.setChannel(115);

  myRadio.setPALevel(RF24_PA_MAX);

  myRadio.setDataRate( RF24_250KBPS ) ;

  myRadio.openReadingPipe(1, addresses[0]);

  myRadio.startListening();

void loop()

  if ( myRadio.available())

    while (myRadio.available())

      myRadio.read( &data, sizeof(data) );

    Serial.print("\nPackage:");

    Serial.print(data.id);

    Serial.print("\n");

    Serial.println(data.temperature);

    Serial.println(data.text);

#include "RF24.h"

int Eapera = 0;

int Vuelta = 0;

RF24 myRadio (7, 8);

//--------- >>>>>>>> Paquete >>>>>>>>>

struct package{

  int CHN2=0;

  int CHN3=0;

  int CHN4=0;

};

typedef struct package Package;

Package data;

//--------- <<<<<<<< Paquete <<<<<<<<<

void setup()

                                    //Serial.begin(115200);//<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

  pinMode(2, INPUT);

  pinMode(3, INPUT);

  pinMode(4, INPUT);

  pinMode(5, OUTPUT);

  pinMode(6, OUTPUT);

  pinMode(9, OUTPUT);

  pinMode(10, OUTPUT);

  myRadio.begin();

  myRadio.setChannel(115);

  myRadio.setPALevel(RF24_PA_MAX);     //<< RF24_PA_MIN,/ RF24_PA_LOW,/ RF24_PA_HIGH,/ RF24_PA_MAX,  <<ojO

  myRadio.setDataRate( RF24_250KBPS ); //<< RF24_1MBPS,/ RF24_2MBPS,/ RF24_250KBPS  <<ojO

  myRadio.openWritingPipe(1);

  myRadio.openReadingPipe(1, 1);

  myRadio.startListening();

  delay(100);

void loop()

{//>>>>  -------------------------- Recibe >>>>>>>>

Eapera=0;

if (myRadio.available())

    while (myRadio.available())

        myRadio.read( &data, sizeof(data) );

    Vuelta=0;

    digitalWrite(10, HIGH);

    digitalWrite(5, data.CHN2);

    digitalWrite(6, data.CHN3);

    digitalWrite(9, data.CHN4);

  else

   Vuelta++;

      if (Vuelta > 5)

       digitalWrite(10, LOW);

            //Serial.print(" No Avalible = ");//<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

            // Serial.println(Vuelta);         //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

//<<<<  -------------------------- Recibe <<<<<<<<<

//>>>> --------------------------- Send >>>>>>>>>

  delay(100);

  myRadio.stopListening();

  //=================== Send >>>>

  if (digitalRead(2) == HIGH){if (data.CHN2 == 1){data.CHN2 = 0;}else{data.CHN2 = 1;}Eapera=1;}

  if (digitalRead(3) == HIGH){if (data.CHN3 == 1){data.CHN3 = 0;}else{data.CHN3 = 1;}Eapera=1;}

  if (digitalRead(4) == HIGH){if (data.CHN4 == 1){data.CHN4 = 0;}else{data.CHN4 = 1;}Eapera=1;}

    digitalWrite(5, data.CHN2);

    digitalWrite(6, data.CHN3);

    digitalWrite(9, data.CHN4);

  //=================== Send <<<<

  myRadio.write(&data, sizeof(data));

  myRadio.startListening();

  if(Eapera==1){delay(300);}else{delay(100);}

//<<<<  -------------------------- Send <<<<<<<<<

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