Re: [mh] Marrick Lynx-10 and Stanley Homelink Garage sensor

[Greg S. <sa...@ir...>]

The enclosed email describes how I decoded the Stanley Garage door 
sensor modules for another home automation system. Rereading it after 
all this time I discovered it doesn't detail whether the data is in 
extended command or data.

I am not sure if this is useful information at this point in the 
conversation as I haven't been following it too closely. Hopefully it 
is useful to someone else. I no longer have these units so I have no 
way to do anything more then report this.

Thanks,
Greg

  From: Greg Satz <satz(at)employees.org>
  To: XTension Discussion <XTension_Discussion(at)lists.bzzzzzz.com>
  Sent: Wednesday, November 10, 1999 6:41 PM
  Subject: Garage sensors

  > I spent some time looking into the garage sensors that were mentioned
  > on this list a while ago. These are the wireless sensors that mount
  > on the garage doors and sense the position of the door as the door
  > moves along its track. The sensors send to a receiver device that is
  > plugged into the wall. The receiver device also acts as a transceiver
  > for the motion detectors and other wireless devices.
  >
  > The garage door status is sent as extended commands. The value of the
  > extended command contains which of three garage doors is up or down
  > and which door caused the update. The units also periodically update
  > the status as a battery check and in case a transmission was lost.
  >
  > The numbering scheme can be reduced to a number between 0 and 7.
  >
  > Door 1 starts at 16 decimal and stops at 23 decimal.
  >
  > Door 2 starts at 32 and stops at 39, both decimal.
  >
  > Door 3 starts at 64 and stops at 71, decimal.
  >
  > If you subtract the numbers between 16 and 23 by 16, 32 and 39 by 32
  > and 64 and 71 by 64, you get a number between 0 and 7. Numbers
  > between 0 and 7 are octal and can be prepresented by 3 bits (one for
  > each garage door).
  >
  > 0 000 all doors closed
  > 1 001 door 1 open, others closed
  > 2 010 door 2 open, others closed
  > 3 011 door 1 and 2 open, door 3 closed
  > 4 100 door 1 and 2 closed, door 3 open
  > 5 101 door 1 and door 3 open, door 2 closed
  > 6 110 door 2 and 3 open, door 1 closed
  > 7 111 all doors open
  >
  > If you get a number between 16 and 23, you know the first door just
  > did something. If the number is between 32 and 39, door 2 was
  > activated somehow. 64 and 71 is caused by door 3 moving.
  >
  > You can get to the extended command's value via the attachments
  > script. If there is any interest I could post what I put together.
  >