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What if you leave your garage door open while your car is parked inside, such as overnight? Depending on your neighbourhood, you might not want to offer the insides of your garage so easily...

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E.g. Automatically close the garage door with a beep sound after x minutes of observed inactivity (IR sensor or camera).

I had the same problem about a year ago, then I just bought this and swapped out my existing wall switch. Beeps a warning and autocloses after a minute.

http://www.amazon.com/LiftMaster-888LM-Security-Upgrades-Pre...

Problem with IoT devices like LiftMster is that they rely on the same 'rolling code' technology (see 'Programming' https://www.liftmaster.com/CatalogResourcesV3/en-us/shared/f...) to give the connected device (internet) access to open/close the door. This is long proven to be very insecure: http://www.wired.com/2015/08/hackers-tiny-device-unlocks-car...

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