main_rx.cpp

//RxLeft\main.cpp
#include <Arduino.h>
#include <SPI.h>
#include <Mirf.h>
#include <nRF24L01.h>
#include <MirfHardwareSpiDriver.h>

#define PAYLOAD_SIZE 1
#define MESSTYPE_TEST 0x99 //Test med 2675 NRF testare
#define LED1 A5

void MessInkomming(byte[]);
void Blink(uint8_t);

byte RxAddress[6] = {"RX099"};
uint8_t data[PAYLOAD_SIZE]; //payload on client and server must be the same.

void setup() {
  Serial.begin(9600);
  Serial.println("setup Code1 RX");
  Blink(1);

  Mirf.spi = &MirfHardwareSpi;
  Mirf.init();

  Mirf.setRADDR(RxAddress);
  Mirf.payload = PAYLOAD_SIZE;
  Mirf.config();
}

void loop() {
  if(!Mirf.isSending() && Mirf.dataReady()){
    Serial.println("reciving...");
    Mirf.getData(data);
    MessInkomming(data);
  }
}

void Blink(uint8_t c){
  for (uint8_t i = 0; i < c; i++){
    pinMode(LED1, OUTPUT);
    digitalWrite(LED1, LOW);
    delay(200);
    digitalWrite(LED1, HIGH);
    delay(200);
  }
};

void MessInkomming(byte Recive[]){
  if(Recive[0] != MESSTYPE_TEST){
    Serial.println("ERROR wrong MESSTYPE");
    Blink(1);
  }

  if(Recive[0] == MESSTYPE_TEST){
    Serial.println("OK reciving MESSTYPE_TEST.");
    Blink(3);
  }
}

main_tx.cpp

//TxRight/main.cpp
#include <Arduino.h>
#include <SPI.h>
#include <Mirf.h>
#include <nRF24L01.h>
#include <MirfHardwareSpiDriver.h>

#define PAYLOAD_SIZE 1 //
#define MESSTYPE_TEST 0x99 //Test med 2675 NRF testare

byte RxAddress[6] = {"TX099"};
uint8_t TXAddress[6] = {"RX099"};
uint8_t data[PAYLOAD_SIZE]; //payload on client and server must be the same.

void setup() {
    Serial.begin(9600);
    Serial.println("setup Code1 TX");

    Mirf.spi = &MirfHardwareSpi;
    Mirf.init();
    Mirf.setRADDR(RxAddress);
    Mirf.payload = PAYLOAD_SIZE;
    Mirf.config();

    data[0] = MESSTYPE_TEST;
    Mirf.setTADDR(TXAddress);

    if(!Mirf.isSending()){
       Mirf.send(data);
       Serial.println("send...");
       delay(20);
    }else{
       Serial.println("send ERROR...");
    }
}

void loop() {}