@Damian ( edit - The question wasn’t for me was it. Anyway this might help someone. )
Hi, not sure what you mean hopefully the attached picture will help. ( That’s a Pi B+ with a very fat HDMI cable. I intend to change it to a slimmer one and add a PIR sensor using @cowboysdude code. )
I was going to use a Pi Zero W then realised I had an old B+ and Wifi dongle so I switched to that instead.
If you have any specific questions please ask.