https://community.element14.com/members-area/personalblogs/b/john-alexander-s-blog/posts/piface-control-display-tear-down?CommentId=e013493e-c0ba-4a28-818e-e2c88c25ed45
PIFace Control & Display Tear Down - element14 Community
tear downpifacecontroldisplaycommunity
https://community.element14.com/products/raspberry-pi/w/documents/11085/piface-home-timeswitch---turning-a-light-on-and-off?CommentId=0c21f7f6-f6bc-488c-af74-741aee1cbcb5
PiFace Home Timeswitch - turning a light on and off - element14 Community
** Update**I've now implemented this using an Energie Pi Controlled mains Socket - see my blog at Home Automation using ENERGENIE - ENER002-2PIFor details on...
on and offpifaceturning