#include <RF24Network.h>
#include <RF24.h>
#include <SPI.h>

RF24 radio(9,10);
RF24Network network(radio);
struct payload_t{unsigned long int code; unsigned long int message;};

void setup(void) {
  Serial.begin(9600);
  SPI.begin();
  radio.begin();
  radio.setPALevel(RF24_PA_MAX);
  radio.setDataRate(RF24_250KBPS);
  radio.setAutoAck(false);
  network.begin(108, 0);
}

void loop(){
  network.update();
  RF24NetworkHeader header;
  payload_t payload;
  if(network.available()) {
    network.read(header, &payload, sizeof(payload));
    Serial.println(payload.message);
    // I WANT HERE TO SEND BACK TO THE TRANSMITTER but I'm unable to do that
    radio.stopListening();
    payload_t payload = { 2000, 15444452 };
    RF24NetworkHeader header(2);
    network.write(header, &payload, sizeof(payload));
  }
}

#include <RF24Network.h>
#include <RF24.h>
#include <SPI.h>

RF24 radio(9,10);
RF24Network network(radio);
struct payload_t{unsigned long int code; unsigned long int message;};
firstExec = 1;

void setup(void) {
  Serial.begin(9600);
  SPI.begin();
  radio.begin();
  radio.setPALevel(RF24_PA_MAX);
  radio.setDataRate(RF24_250KBPS);
  radio.setAutoAck(false);
  network.begin(108, 2);
}

void loop() {
  network.update();
  if(firstExec) {
    radio.stopListening();
    payload_t payload = { 2000, 5555555 };
    RF24NetworkHeader header(0);
    network.write(header, &payload, sizeof(payload));
    radio.startListening();
    firstExec = 0;
  }
  RF24NetworkHeader header;
  payload_t payload;
  if(network.available()) {
    network.read(header, &payload, sizeof(payload));
    Serial.println(payload.message);
  }
}