I connected my clone of arduino nano (with CH340) and not-clone of arduino leonardo to nrf24l01 module and I have uploaded simple sketch which turn ON diode when I press button on another board. Leonardo had diode and Nano had button. It worked few times, sometimes I had to press button two times to turn ON diode or turn OFF but now I can only one time press button because Nano has freeze . I noticed that, when I click button, on nano board TX diode blinked and "L" diode begins little shine.

This diode are connected with pin 13 I think and this pin is connected to SCK in nrf24l01. I don't know why it worked and ceased.

EDIT: This is whole sketch who I use, this is from examples included to library:

 
 #include SPI.h
 #include "nRF24L01.h"
 #include "RF24.h"
 #include "printf.h"


RF24 radio(9,10);

const int role_pin = A4;

const uint8_t button_pins[] = {7};
const uint8_t num_button_pins = sizeof(button_pins);

const uint8_t led_pins[] = {7};
const uint8_t num_led_pins = sizeof(led_pins);

const uint64_t pipe = 0xE8E8F0F0E1LL;

typedef enum { role_remote = 1, role_led } role_e;

const char* role_friendly_name[] = { "invalid", "Remote", "LED Board"};

role_e role;

uint8_t button_states[num_button_pins];
uint8_t led_states[num_led_pins];

void setup(void)
{

pinMode(role_pin, INPUT);
  digitalWrite(role_pin,HIGH);
  delay(20); 

if ( digitalRead(role_pin) )
    role = role_remote;
  else
    role = role_led;

Serial.begin(115200);
  printf_begin();
  printf("\n\rRF24/examples/led_remote/\n\r");
  printf("ROLE: %s\n\r",role_friendly_name[role]);

radio.begin();

if ( role == role_remote )
  {
    radio.openWritingPipe(pipe);
  }
  else
  {
    radio.openReadingPipe(1,pipe);
  }

if ( role == role_led )
    radio.startListening();

radio.printDetails();

if ( role == role_remote )
  {
    int i = num_button_pins;
    while(i--)
    {
      pinMode(button_pins[i],INPUT);
      digitalWrite(button_pins[i],HIGH);
    }
  }

if ( role == role_led )
  {
    int i = num_led_pins;
    while(i--)
    {
      pinMode(led_pins[i],OUTPUT);
      led_states[i] = HIGH;
      digitalWrite(led_pins[i],led_states[i]);
    }
  }

}

void loop(void)
{

if ( role == role_remote )
  {
    int i = num_button_pins;
    bool different = false;
    while(i--)
    {
      uint8_t state = ! digitalRead(button_pins[i]);
      if ( state != button_states[i] )
      {
        different = true;
        button_states[i] = state;
      }
    }

if ( different )
{
  printf("Now sending...");
  bool ok = radio.write( button_states, num_button_pins );
  if (ok)
    printf("ok\n\r");
  else
    printf("failed\n\r");
}

delay(20);


}

if ( role == role_led )
  {
    if ( radio.available() )
    {
      while (radio.available())
      {
        radio.read( button_states, num_button_pins );

    printf("Got buttons\n\r");

    int i = num_led_pins;
    while(i--)
    {
      if ( button_states[i] )
      {
        led_states[i] ^= HIGH;
        digitalWrite(led_pins[i],led_states[i]);
      }
    }
  }
} } }

Pinout:

Leonardo:

D7 - Led with resistor

D9 - NRF24 CE

D10- NRF24 CS

A4 - GND

ICSP MISO - NRF24 MISO

ICSP SCK - NRF24 SCK

ICSP MOSI - NRF24 MOSI

NANO:

D7 - Key from small arduino joystick

D9 - NRF24 CE

D10- NRF24 CS

D11- NRF24 MOSI

D12- NRF24 MISO

D13- NRF42 SCK

NRF24 is also connected to 3v3 pin.