 #include "font.h"
 
 static LedControl lc = LedControl(/*data*/ 2, /*clk*/ 4, /*cs*/ 3, /*#devices*/ 2);
-static long int address = 0x66996699L;  // So that's 0x0066996699
+static uint64_t address = 0x66996699LL;  // So that's 0x0066996699
 
 static RF24 rf(/*ce*/ 9, /*cs*/ 10);
 

#include <SPI.h>

#include <RF24.h>
#include <nRF24L01.h>
#include <RF24_config.h>

//We always have to include the library
#include "LedControl.h"

  lc.clearDisplay(0);
  lc.clearDisplay(1);
  
    Serial.begin(9600);
    Serial.println("Hello world!");
    
    /* NRF init */
    rf.begin();
    Serial.print("Is plus? ");
    Serial.println(rf.isPVariant() ? "yes" : "no");    

    rf.enableDynamicPayloads();
    rf.openReadingPipe(1, address);
    rf.startListening();
}

// reverses bit order in a byte
