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[DPRG] Garage Sensor

Subject: [DPRG] Garage Sensor
From: paradug paradug at gmail.com
Date: Sat Sep 1 23:52:41 CDT 2012

    Since your message asked for the cheapest way, I think your idea of buying a Insigna Infocast 3.5 for $30 with free shipping from eBay is the correct answer.

The Insigna Infocast has built in wifi and 8 exposed GIO pins on the main board (along with I2C port, extra USB port and UART). It also has a SSH server that would
allow you to communicate with it remotely without violating your service provider ban against running a web server from home. You could have it communicate through
email (not sure that is the best way). 

After determining that the door is open you will want to send a command to shut the door and verify that the door did indeed shut. A simple relay across the manual door switch can do this without to much fuss.

Doug P.

From: Tom Brusehaver 
  Sent: Saturday, September 01, 2012 10:33 PM
  To: Doug Emes 
  Cc: dprglist 
  Subject: Re: [DPRG] Garage Sensor

  That is where I got the idea.it isn't compatible with my  craftsman garage door opener. they also require an annual fee for their server.

  On Sep 1, 2012 10:30 PM, "Doug Emes" <dougemes at gmail.com> wrote:

    sears sells a solution, look at their product for inspiration

    On Sep 1, 2012 10:26 PM, "Tom Brusehaver" <cozytom at gmail.com> wrote:

      I have a kind of weird idea. A way to know if my garage door is open or not.
      I am halfway to work, did I really shut the garage door or not? If I could check
      my smartphone, I would know, but how do get the data from the garage to
      my smart phone??

      I want to put a SBC in the garage, something with WiFi, less messing
      around with wires. Have a magnetic reed switch tell if it is closed or not
      wired to one of the GPIO pins on the SBC.

      Once all that is done, I still need a server to act as a gateway to
      the smartphone
      to let it know when it is open or closed.

      This is the idea I have so far, using gmail as my server. The SBC sends an
      smtp message to some tomsgarage at gmail.com or something, then the
      smartphone will subscribe to that mail box. I can have a macro or rule
      setup to delete email older than a day, or when ever a new state is set,
      delete the previous state. A simple open/closed message in the subject
      line will let me know what state things are in. I can check trash to see
      the history of opens and closes.

      My question is, what would be the cheapest SBC with WiFi out there?
      The Insignia infocast might be, at about $30 from ebay, but maybe
      someone has something better?
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