The Raspberry PI or R-pi from http://www.raspberrypi.org/ is well known these days.
It is not an accident that I have one, I have been doing Linux stuff since 1991, and professionally since 1996 I can not skip over these developments, have to keep up with the new kids. 🙂
Times have changed, hardware has become very affordable, everybody knows the Arduino, Raspberry Pi and Beagle-Bone-Black (BBB). Not everybody knows the stuff that http://www.acmesystems.it/ aka Acme-Systems and https://github.com/OLIMEX/OLINUXINO aka Olimex make, so I will endorse them here.
Since I am an engineer I expect to connect switches and relays to the boards and some documentation with products, not so with the “PiFace Digital“ board, it comes without serious documentation, not a even the schematic. All links on their blog point nowhere. People asked them many times, yet nowhere is the schematic to be found.
So I quickly copied that and put it here for you to find, that is the reason you are here right?
I will report adventures with the board when I get time.
I sent a mail to pi AT cs.man.ac.ukAnd I got a prompt reply: