Raspberry Pi and PiFace
My PiFace arrived last week and this was the first time I've had a proper play using it with the Raspberry Pi.
I needed to do some things first to get it working, and I thought I'd document it here for future reference. Your Raspberry Pi will need to be connected to the Internet for this install.
1. Firstly, the Raspberry Pi interfaces with the PiFace through SPI, so this will need enabling.
sudo pico etc/modprobe.d/raspi-blacklist.conf
This code simply switches output one on if switch7 is closed.