Schematic
A schematic is available here.
Setup The RPI Ready To Use The PiFace
PiFace uses the SPI port. Enable the SPI port following the instructions here.
C Source Code
Our C driver for the PiFace can be downloaded from GitHub here.
We also have a version which allows PiFace inputs to be used as outputs and allows sequential writing to them here.
USEFUL?
We benefit hugely from resources on the web so we decided we should try and give back some of our knowledge and resources to the community by opening up many of our company’s internal notes and libraries through mini sites like this. We hope you find the site helpful.
Please feel free to comment if you can add help to this page or point out issues and solutions you have found, but please note that we do not provide support on this site. If you need help with a problem please use one of the many online forums.