Raspberry Pi 2 and Arduino with nRF24L01 radios

Intro

This is awesome! Finally got my RPi2 talking to an Arduino using the nRF24L01 radios!

Config the Raspberry Pi 2 (Model B v1.1)

• connect radio

• config pi to turn on SPI

sudo raspi-config
-> Select Advanced and enable the SPI kernel module

• download drivers

wget http://tmrh20.github.io/RF24Installer/RPi/install.sh
chmod +x install.sh
./install.sh

• test

cd rf24libs/RF24/examples_RPi
cp gettingstarted.cpp mytest.cpp
sudo nano mytest.cpp

change the pipe address
// Radio pipe addresses for the 2 nodes to communicate.
//const uint8_t pipes[][6] = {"1Node","2Node"};
//my address
const uint64_t pipes[2] = { 0xF0F0F0F0E1LL, 0xF0F0F0F0D2LL };

build the program
sudo g++ -Ofast -mfpu=vfp -mfloat-abi=hard -march=armv6zk -mtune=arm1176jzf-s -Wall -I../ -lrf24-bcm mytest.cpp -o mytest

run
sudo ./mytest

Config the Arduino (UNO, Pro Mini….)

• connect radio
• download and install RF24 libraries
  https://github.com/maniacbug/RF24
• load sketch
  File->Examples->RF24->GettingStarted
• test
  

Putting it all together

Finally, set the role on the RPi2 to ping_out.