This repository contains a few examples about how to send analog readings From Arduino to Raspberry via Radio (nRF24L01 aka RF24).

All details are here: http://coconauts.net/blog/2014/09/03/send-readings-from-arduino-to-raspberry-via-radio/

Connecting the RF24

Connecting the RF24 is not that hard if you follow any of the schemas below:

  __________________
  |_1_| 2         ~ |
  | 3 | 4  [_]    ~ |
  | 5 | 6         ~ |
  | 7 | 8  (   )  ~ |
  ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾ 
  NRF24L01    Arduino  Raspberry
  
  1           GND      GND
  2           3.3v     3.3v
  3           D9       22
  4           D10      CS0
  5           D13      SCLK
  6           D11      MOSI
  7           D12      MISO

Coding the RF24

Arduino

First you need to download the RF24 libraries for Arduino, you can find them here, just copy the whole folder into your Arduino libraries.

Once the libraries are copied, you can run any of theArduino scripts in this repo.

Raspberry

First, download the c++ library for your Raspberry PI available here , install them with make and make install. You can also compile and test the examples.

Then compile and run the raspberry code using g++ -lstdc++ -lrt -lrf24-bcm rf24.cpp -o rf24.out and ./rf24.out