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Android Garage Door Opener, part 2 - brad's life [entries|archive|friends|userinfo]
Brad Fitzpatrick

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Android Garage Door Opener, part 2 [Oct. 26th, 2008|12:06 pm]
Brad Fitzpatrick
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This is a follow-up to my previous post to say:

SO. FUCKING. AWESOME.

I got it all working. I now have an Android Activity (GarageDoorActivity) which interacts with an Android Service I wrote (InRangeService), letting me start and stop the service's wifi scanning task. The service gets the system WifiManager, holds a WifiLock to keep the radio active, and then does a Wifi scan every couple seconds, looking for my house.

When my house is in range, it does the magic HTTP request to my garage door opener's webserver (HMAC-signed timestamped URL, for non-replayability/forgeability if sniffed) and my garage door opens. Complete with a bunch of fun Toast notifications (like Growl) and Android Notifications (both persistent ongoing notifications for background scanning, and one-time notifications for things like the garage door actually opening).

I just threw on some shoes and hopped on my motorcycle to do a test lap around the neighborhood. When I got to the corner, I pulled up the activity and press "Start" (aka "Going home now"). A lady on the corner saw me playing with my phone on my motorcycle and said, "The reception's not so good up here." I thanked her, not wanting to explain what I was actually doing.

I then finished the lap around the block and the garage door started opening a few houses away. By the time I pulled up, I could already back the bike into the garage. HELL YES.

Update 2008-11-16: The source code is now available.
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Comments:
[User Picture]From: alcarilinque
2008-11-19 03:19 am (UTC)
Another option still would be to use the internal GPS to begin the process. When Brad comes within say, a 300 meter range of his home or something (the GPS seems to be slow at updating location) the process could automatically be triggered. Thus, all he'd have to do is hope wherever his phone is is in a good enough position to be able to get GPS info.
(Reply) (Parent) (Thread)
[User Picture]From: brad
2008-11-19 08:50 am (UTC)

Re: Use GPS to auto-start the InRangeService

Assuming the GPS worked.
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