Make sure you are using the lastest version of Raspbian:

$ sudo apt-get update
$ sudo apt-get upgrade

Install pifacecad (for Python 3 and 2) with the following command:

$ sudo apt-get install python{,3}-pifacecad

Test by running the program:

$ python3 /usr/share/doc/python3-pifacecad/examples/

You will need to configure the IR receiver yourself. More examples can be found in /usr/share/doc/python3-pifacecad/examples/ (which may need unzipping using gunzip).

SysInfo Service

You can run sysinfo as a service using:

$ sudo service pifacecadsysinfo start

You can stop the service with:

$ sudo service pifacecadsysinfo stop

You can enable the service to run at boot (handy for headless Raspberry Pi’s):

$ sudo update-rc.d pifacecadsysinfo defaults