#include <nRF24L01.h>
#include <printf.h>
#include <RF24.h>
#include <RF24_config.h>
#include <Wire.h>
#include <SPI.h>

RF24 radio(7, 6); // CE, CSN
const byte SendAddress[6] = "006";
const byte ReceiveAddress[6] = "005";

void setup() {
    Serial.begin(9600);
    radio.begin();
    radio.openWritingPipe(SendAddress);
    radio.openReadingPipe(1, ReceiveAddress);
    radio.setPALevel(RF24_PA_MAX);
}

void loop() {
    radioReceive();
    radioSend("test");
    delay(250);
}

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

void radioSend(String text) {
    const char *cstr = text.c_str();
    radio.stopListening();
    radio.write(&cstr, sizeof(cstr));
}