[Cialug] Raspberry Pi 3

[Dave Hala]

So is a garage  door opener.



On Mon, Feb 29, 2016 at 5:54 PM, David Champion <dchamp1337 at gmail.com> wrote:
> Seems pretty easy to spoof.
>
> -dc
>
> On Mon, Feb 29, 2016 at 5:52 PM, Dave Hala <dave at 58ghz.net> wrote:
>
>> What would be a really cool application is if your PI read your
>> license plate and opened the door.
>>
>>
>> :) Dave
>>
>> On Mon, Feb 29, 2016 at 5:49 PM, Jeffrey Ollie <jeff at ocjtech.us> wrote:
>> > On Mon, Feb 29, 2016 at 4:49 PM, Justin Richeson <neomatrixjr at gmail.com>
>> > wrote:
>> >
>> >> If you ever get this working to control your door I'd be interested in
>> how
>> >> you set it up.  I'm planning to do something similar with some connected
>> >> board (was going to use my C.H.I.P possibly).  I was looking around and
>> I
>> >> found most circuits use a relay, but one just used a transistor I
>> believe.
>> >> I was hoping to do that, but I also can't seem to find good information
>> on
>> >> exactly how to control the opener.  2 wires run to the "button" in the
>> >> garage, but somehow it controls a lock function, the light, and the
>> door.
>> >> I'm not sure what it does to do all that, and I haven't found a good
>> >> resource for info or time to try to sort it out for myself.  I was also
>> >> trying to figure out if there's any way to vamp power off the opener's
>> >> connectors anywhere....  Would be very interested in how you set yours
>> up.
>> >>
>> >
>> > Newer openers might be fancier, but mine just has two contacts that will
>> > trigger the door when shorted.  When I took apart the wired controller
>> for
>> > my door it looks as if I put around 200 ohms of resistance into the
>> circuit
>> > when I short the contacts it will turn on the light rather than open the
>> > door but I haven't had a chance to test.  I'm waiting for a free weekend
>> > when it's a bit warmer to try and hook all this up.
>> >
>> > I haven't tested the voltage that's on the contacts, but it's probably
>> low
>> > voltage AC so not very suitable for powering anything else (easily at
>> > least).  The electrical socket that my door opener is plugged into has an
>> > open space so I'm just going to plug my Pi into that.
>> >
>> > On Mon, Feb 29, 2016 at 11:53 AM, Jeffrey Ollie <jeff at ocjtech.us> wrote:
>> >>
>> >> >
>> >> > [...] one is monitoring the temperature
>> >> > in my detached garage and will eventually control my garage door
>> opener.
>> >> >
>> >> > I did get a Pi3 ordered (MCM limits you to one) but I have no idea
>> when
>> >> > it'll ship.
>> >> >
>> >> > --
>> >> > Jeff Ollie
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>> >
>> >
>> > --
>> > Jeff Ollie
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