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Difficulty level: Beginner

Approx reading time:

Components Required:

1. Raspberry Pi 3 model B

2. Arduino Uno

3. MicroSD card 8 or 16 GB (Class 4 and above) with Raspbian – 2

4. Windows PC / Linux PC (Tested on Windows 10, Ubuntu 14.04 LTS)

5. Ethernet cable (Category 5 – also called Cat 5)

6. Micro USB cable and USB cable type A/B (for Arduino)

7. Breadboard

8. NRF24L01+ Transceiver – 2

9. Jumper Wires (Male to Female, Male to Male)

Way to go ->

1. Login to both your devices using PuTTy or your Ubuntu terminal.

2. Login to both your devices’ GUIs using VNC server (Linux / Windows).

Do the following for both the devices:

3. In the terminal type: 

and press Enter on your PC keyboard.

Follow steps 7 – 9 of RPi 3 Tutorial – 11 for steps 4 – 6.

4. Go to Advanced Options.

5. Go to SPI.

6. Enable SPI Interface by clicking on <Yes>.

7. Reboot the Pi. In the terminal, type: 

8. In the terminal type: 

9. After it has rebooted, install Python development tools. In the terminal, type:

10. Download this package. In the terminal type:

11. In the terminal type: ls to check that you have master.zip in your current working directory.

12. To unzip, in the terminal type: 

13. Remove master.zip: 

14. Navigate to py-spidev-master directory(folder): 

15. Type in the terminal: ls, to view the contents of the directory(folder).

16. In the terminal run the commands:

17. Navigate to the desktop by running the following commands. In terminal type:

Press Enter on your PC keyboard.

Press Enter on your PC keyboard.

18. Create the following directory(folder) and navigate to it. In terminal type:

Press Enter on your PC keyboard.

Press Enter on your PC keyboard.

19. In the terminal type:

20. Navigate to directory just downloaded. In the terminal type:

Press Enter on your PC keyboard.

Press Enter on your PC keyboard.

Press Enter on your PC keyboard.

21. Copy lib_nrf24.py to the NRF24L01 directory. In the terminal type:

22. Navigate to the NRF24L01 directory:

23. In Python 3 (IDLE), create a new file.

24. The name could be: ReceiveArduino.py. Save it in the NRF24L01 directory(folder).

25. In the file ReceiveArduino.py, write the following code with comments (line starting with “#”) for clear understanding and save (press Cntrl + S on your PC keyboard) the file.

 26. Open the Arduino IDE.

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27. In the above menu bar go to: Sketch -> Include Library -> Manage Libraries…

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28. Search for RF24, select RF24 by TMRh20 Version 1.1.6 and click Install. After installation close the library manage.

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29. Write the following program in the Arduino IDE and Upload it to the Arduino. Send.ino

30. Finally, run the script on the Pi by clicking on Run -> Run Module in the menu bar or by pressing F5 on your PC keyboard.

ReceiveArduino.py output

RPiArduinoRxOutput

31. For a master/slave setup.

SendReceiveArduino.py(Pi)

SendReceive.ino(Arduino)

SendReceive.ino(Arduino) output

SlaveArduino

SendReceiveArduino.py(Pi) output

MasterPi

Hardware Connections ->

1. Raspberry Pi 3 GPIO Header.

pi3_gpio

2. nRF24L01 pinout

nrf24l01_module_pinout

3. nRF24L01 to Pi connections.

RFToPiConnections

RFToPi_schem

RFToPi_bb

4. nRF24L01 to Arduino Uno connections.

RFToArduinoConnections

ArduinoToRF_schem

Read full tutorial at

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