Team,
I need to have a check on an open/close door. I’ve tried the “wifi alarm” magnetic items but they do not work correctly as they get quite immediately the “open” but I never get the “close” signal.
I was thinking to use a magnetic switch on the S1 - S2 on a Mini but I must be sure there is low voltage there or is deadly risky.
I was not able to find any specs or documentation on this.
I think it’s important to specify the voltage on S1 and S2.
I understood from several posts that there is a V3.3 difference S1-S2 but is it 0V-3.3V or is 220V-223V ??? it changes quite a lot 
So please can you provide the official info and update the documentation?
Please note that deriving the info from the wiring diagrams is not good enough 
thanks
M
