Wiring the NRF24 Checking your Hardware Version On the shell execute 'cat /proc/cpuinfo' at the bottom of the output you will find the field 'Revision'. Revision values of a01041, a21041 or 0010 inidicate Hardware Version B+ anything else V2. Pi Hardware Version V2 GND 25 VCC 17 CE 22 CSN 24 SCK 23 MOSI 19 MISO 21 IRQ -- Pi Hardware Version B+ GND 25 VCC 17 CE 15 CSN 24 SCK 23 MOSI 19 MISO 21 IRQ -- Building Serial Gateway The standard configuration will build the Serial Gateway with a tty name of '/dev/ttyMySensorsGateway' and PTS group ownership of 'tty' the PTS will be group read and write. The default install location will be /usr/local/sbin. If you want to change that edit the variables in the head of the Makefile. First build the librf24-bcm library - Change to librf24-bcm - make all - sudo make install Build the Gateway - change back to Raspberry Dir - make all - sudo make install - (if you want to start daemon at boot) sudo make enable-gwserial Uninstalling - change to Raspberry Dir - sudo make uninstall Support: http://forum.mysensors.org