simple_rx.ino

#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>
#include <printf.h>

#define CE_PIN 9
#define CSN_PIN 10

RF24 radio(CE_PIN, CSN_PIN);
const byte ADDRESS[6] = "00001";

void setup() {
  while (!Serial);
  Serial.begin(9600);
  printf_begin();
  radio.begin();
  //radio.setAutoAck(false);
  
  radio.setDataRate(RF24_2MBPS);
  //RF24_1MBPS, RF24_2MBPS
  
  radio.setPALevel(RF24_PA_MIN);  
  //RF24_PA_LOW, RF24_LOWMBPS
  
  radio.setRetries(3,5);
  // delay, count

  radio.openReadingPipe(0, ADDRESS);
  radio.startListening();
  
  radio.printDetails();
}

void loop() {
  if (radio.available()) {
    char text[32] = "";
    radio.read(&text, sizeof(text));
    Serial.println(text);
  }
}