Linux General/Raspberry Pi¶

RF24 supports a variety of Linux based devices via various drivers. Some boards like RPi can utilize multiple methods to drive the GPIO and SPI functionality.

Potential PreConfiguration¶

If SPI is not already enabled, load it on boot:

sudo raspi-config

1. Update the tool via the menu as required

2. Select Advanced and enable the SPI kernel module

3. Update other software and libraries

   sudo apt-get update
   sudo apt-get upgrade
   

Build Options¶

The default build on Raspberry Pi utilizes the included BCM2835 driver from the BCM2835 Library

1. See the Linux section for automated installation.

2. Manual install:

   make
   sudo make install
   

Connections and Pin Configuration¶

Using pin 15(GPIO22) for CE, pin 24(GPIO8 commonly labeled as CE0) for CSN

Can use any available SPI BUS for CSN.

In general, use

RF24 radio(<ce_pin>, <a>*10+<b>);

for proper constructor to address the correct spi device at /dev/spidev<a>.<b>

Choose any GPIO output pin for radio CE pin.

General¶

RF24 radio(22,0);

MRAA Constructor¶

RF24 radio(15,0);

See the MRAA documentation for Raspberry Pi support

SPI_DEV Constructor¶

RF24 radio(22, 0);

See the Raspberry Pi documentation about the GPIO pins

Pins¶

breif history of RF24 library lineage¶

Based on the arduino lib from J. Coliz, the library was berryfied by Purinda Gunasekara then forked from github stanleyseow/RF24 to jscrane/RF24-rpi

Network lib also based on farconada/RF24Network