Receiver nFR24L01

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

int distance;
RF24 radio(7, 8);
const uint64_t pipes[3] = { 0xF0F0F0F0E1LL, 0xF0F0F0F0E2LL, 0xF0F0F0F0E3LL };

void setup(void) {
  // put your setup code here, to run once:
  Serial.begin(9600);
radio.begin();
radio.setDataRate(RF24_250KBPS);
radio.openReadingPipe(1, pipes[1]);
//radio.openReadingPipe(2, pipes[2]);
radio.startListening();

}

void loop(void) {
  // put your main code here, to run repeatedly:
   if ( radio.available() )
  {
      float distance; // Fetch the data payload
      //radio.read(&distance,sizeof(distance));
      memset(&distance,' ',sizeof(distance));
       radio.read(&distance,sizeof(distance));
      Serial.print("X = ");
      Serial.println(distance);

     // Serial.println(distance);

      delay(500);


}
}