If you don't have a clue on how to set up your Pi - go to the [Raspberry Pi website](http://www.raspberrypi.org/downloads/) and follow the instructions there. I have been using Raspbian so far as well as [Satellite CCRMA](https://ccrma.stanford.edu/~eberdahl/satellite/) without problems.
Another thing you need is a working [openFrameworks](http://openframeworks.cc) installation. There are 2 openFrameworks setup guides now as there are 2 versions of Raspberry Pi:
- [Raspberry Pi 1 oF Setup Guide](http://openframeworks.cc/setup/raspberrypi/)
- [Raspberry Pi 2 oF Setup Guide](http://forum.openframeworks.cc/t/raspberry-pi-2-setup-guide/18690)
- [Raspberry Pi oF Setup Guide](http://openframeworks.cc/setup/raspberrypi/Raspberry-Pi-Getting-Started.html)
Clone this (the ofxPiMapper) repository into your `openFrameworks/addons` folder. If your openFrameworks installation on the Pi resides in the home directory, you have to type the following in the terminal: