Hi All,
Im installing a bunch of new doors and windows. I would like to fit them with magnet contacts to detect open/close state, preferable going into a raspberry pi.
I did some reading and apparently you have to versions the NC (normal closed) and NO (normal opened) ones.
I understand that for alarm systems you would use the NC version. Makes sense.
My question, if I would like to identify which window/door is/are open, what would be the best/easiest way to address each sensor?
Obviously some bus style would be cable wise (length) most efficient, but that means I need some way too address each sensor (RS485?). When pulling wires in a star style would be much easier, but more wires.
Situation: 3 floors, house is completely being renovated, so cable access is no problem.
basement: 4 doors / windows
1st: 8 doors / windows
2nd:8 doors / windows
Looking forward to some feedback / best practice
Thanks!