Sunday, August 11, 2013

Monitor the Porch Door




The design called for using a 2843-222 Open/Close Sensor to monitor two doors leading into the porch. The idea was to use RF only, in order to save the trouble of installing an electrical circuit (for say the I/O linc) and having to deal with another battery device to maintain.

I had read the manual quickly, and assumed that a simple magnetic switch could be used to the second door, and that the built-in magnetic switch (part of the Open/Close Sensor) could be used to monitor the first door. Installation tests proved this to be incorrect. If external magnetic switches are used with the device, they must be used on every door. These sensors need to be connected in series and the circuit connected back into the Open/Close Sensor's external contacts.  The internal magnetic switch in the 2843 can not be used, as it needs to stay "Open" (away from a magnet) when monitoring the other two external (normally closed) magnetic switches.

We'll need to buy another cheap magnetic switch and change the wiring, but for now, here is the program we are using to notify us if someone opens the porch door after midnight:

If
        Control 'Florida_Room_Door' is switched On
    And From    Sunset
        To      Sunrise (next day)

Then
        Set Scene 'Back Lights ON' On
        Wait  5 minutes

Else
        Set Scene 'Back Lights ON' Off

if someone opens the back door at night,
all the back lights will come ON for 5 mins
.



Here is the program we're using to keep the lights "ON" if
there is activity in the porch area after midnight:


If
        Status  'Florida Room-Sensor' is On
    And From    12:00:00AM
        For      6 hours

Then
        Set Scene 'Back Lights ON' On
        Wait  15 minutes

Else
        Set Scene 'Back Lights ON' Off

between midnight and the morning
if movement in the florida oom,
turn on back lights for 15 mins.

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