Arduino.ru

#include <SPI.h>
#include "nRF24L01.h"
#include "RF24.h"
#include "printf.h"
#include "DHT.h"

#define DHTPIN 5
#define DHTTYPE DHT22

DHT dht(DHTPIN, DHTTYPE);

RF24 radio(8,7);

const uint64_t pipes[2] = { 0xF0F0F0F0E1LL, 0xF0F0F0F0D2LL };

void setup(void)
{
  dht.begin();
  
  Serial.begin(57600);
  printf_begin();

  radio.begin();

  radio.setRetries(15,15);

  radio.openReadingPipe(1,pipes[1]);

  radio.startListening();

}

void loop(void)
{
 float data; 
 if ( radio.available() )
    {
      bool done = false;
      while (!done)
      {
        done = radio.read( &data, sizeof(data) );
        Serial.println(data);
        if (isnan(data))
        {
          Serial.println("Failed to read from DHT");
        }
      }
    }
}

код передатчика:

#include <SPI.h>
#include "nRF24L01.h"
#include "RF24.h"
#include "printf.h"
#include "DHT.h"

#define DHTPIN 5
#define DHTTYPE DHT22

DHT dht(DHTPIN, DHTTYPE);

RF24 radio(8,7);

const uint64_t pipes[2] = { 0xF0F0F0F0E1LL, 0xF0F0F0F0D2LL };

void setup(void)
{  
  
  dht.begin();
    
  Serial.begin(57600);
  printf_begin();

  radio.begin();

  radio.setRetries(15,15);

  radio.openWritingPipe(pipes[1]);

  radio.startListening();

}

void loop(void)
{
      radio.stopListening();
      
      float data = dht.readTemperature();
      Serial.print(data);
      
      radio.write( &data, sizeof(data) );
      printf("Sent response.\n\r");
      
      delay(2000);

      radio.startListening();
}