problem with the hc-sr04 with nrf240l01

when tried combine ultrasonic, output serial monitor zero. either problem coding.?for tx code

code: [select]

#include <spi.h>
#include <mirf.h>
#include <nrf24l01.h>
#include <mirfhardwarespidriver.h>
#define trigpin 5
#define echopin 4
int rate, duration;
long previousmillis = 0;
long interval = 1000;
void setup(){

  serial.begin(9600);
  mirf.spi = &mirfhardwarespi;
  mirf.init();
  mirf.setraddr((byte *)"clie1");
  mirf.payload = sizeof(rate);
  mirf.config();
}

void loop(){
  unsigned long currentmillis = millis();
  if(currentmillis - previousmillis > interval) {
    previousmillis = currentmillis;

    digitalwrite (trigpin, high);
    delaymicroseconds (1000);
    digitalwrite (trigpin, low);
    duration = pulsein (echopin, low);
    rate = (duration/2) / 29.1;
    serial.print(rate);
    delay (500) ;
    mirf.settaddr((byte *)"serv1");

    mirf.send((byte *) &rate);

    while(mirf.issending()){
    }
  }
}


and here rx code

code: [select]

#include <mirf.h>
#include <mirfhardwarespidriver.h>
#include <mirfspidriver.h>
#include <nrf24l01.h>
#include <spi.h>


int rate;

void setup(){

  serial.begin(9600);

  mirf.spi = &mirfhardwarespi;
  mirf.init();
  mirf.setraddr((byte *)"serv1");
  mirf.payload = sizeof(rate);
  mirf.config();
}

void loop(){

  while(!mirf.dataready()){
  }
  mirf.getdata((byte *) &rate);
  serial.print("range of distance");
  serial.print(rate);
  serial.println("cm");
  delay(100);
}


    
thanks you
because of can finish nrf2401l + hcsr04.
code connections correct , data sent . code ultrasonic sensors still wrong . distance sent " 0 " . perfected using library newping , worked.

transmitter

code: [select]

#include <spi.h>
#include <mirf.h>
#include <nrf24l01.h>
#include <mirfhardwarespidriver.h>
#include <newping.h>

#define trigger_pin 6
#define echo_pin 5
#define max_distance 200

int rate;
long previousmillis = 0;
long interval = 1000;

newping sonar(trigger_pin, echo_pin, max_distance);

void setup(){

  serial.begin(9600);
 
  mirf.cepin = 8;
  mirf.csnpin = 7;
  mirf.spi = &mirfhardwarespi;
  mirf.init();
 
  mirf.channel = 0;
  mirf.payload = sizeof(rate);
  mirf.config();
 
  mirf.settaddr((byte *)"nrf01"); // le 2eme module va envoyer ses info au 1er module
  mirf.setraddr((byte *)"nrf02");
}

void loop(){
  unsigned long currentmillis = millis();
  if(currentmillis - previousmillis > interval)
  previousmillis = currentmillis;
 
    rate = sonar.ping_cm();
    serial.print(rate);
    delay (100) ;
   
    mirf.send((byte *) &rate);
    while(mirf.issending()){
    }
  }

receiver

code: [select]

#include <mirf.h>
#include <mirfhardwarespidriver.h>
#include <mirfspidriver.h>
#include <nrf24l01.h>
#include <spi.h>

int rate;

void setup(){

  serial.begin(9600);

  mirf.cepin = 8;
  mirf.csnpin = 7;
  mirf.spi = &mirfhardwarespi;
  mirf.init();
 
  mirf.channel = 0;
  mirf.payload = sizeof(rate);
  mirf.config();
 
  mirf.settaddr((byte *)"nrf02");
  mirf.setraddr((byte *)"nrf01");
}

void loop(){

  while(!mirf.dataready()){
  }
  mirf.getdata((byte *) &rate);
  serial.print("range of distance");
  serial.print(rate);
  serial.println("cm");
  delay(100);
}

thank much!

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