I have a PiFace Digital and want to connect a PIR to it to see how I can get it to switch on via a sensor - never done this before...
The problem is that I don't know how to wire it up. The PIR has three pins. Can anyone tell me where they should be connected?
Here is a picture showing how it is done:-
https://www.element14.com/community/ser ... 180026.jpg
but it isn't very clear.