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How'bout go to Al Lasher's Electronics in Berkeley and see what they
have to offer? They have a whole department for DIY security
systems. <br>
<br>
The most basic requirement is a) entry keypad with ability to have
personal entry codes for a sufficient number of persons, b) door
intercom with means of buzzing people in from upstairs, and c)
additional input for a relay contact closure to buzz people in.<br>
<br>
Then optionally, d) means of connecting to (c) via telephone dial-up
or secure online connection and entering a code, thereby enabling
someone at home to buzz people in remotely, e.g. Alice wants in,
calls Bob who's at home or on the road, and Bob calls the system or
connects to a screen with a remote code entry to let Alice in.<br>
<br>
Then see what hardware Lasher's recommends, and the cost. (It's
almost certainly going to be less than the unpaid cost of labor
that's gone into this so far.) It's likely they'll have solutions
for (a), (b), and (c), but may not have something for (d). In which
case you end up with a reliable basic system and a project to build
a solution for (d) from scratch. But at least the basics will be
working, so the development project will have less stress and more
freedom to experiment. <br>
<br>
-G<br>
<br>
<br>
======<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 14-01-20-Mon 3:02 PM, Dan Krol
wrote:<br>
</div>
<blockquote
cite="mid:CAAWRcS-zJErgC+0wyUZapicdDRN5nxcdMDRN6k0Kxm+fb-AyKw@mail.gmail.com"
type="cite">
<div dir="ltr">Not knowing anything about the specific
application, I'll risk asking a naive question - any reason not
to just get a powered USB hub? Though I'd caution against
plugging multiple things into it; a keyboard and a hard drive
together had it acting kindof strange for me.</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Mon, Jan 20, 2014 at 2:50 PM, Andrew
<span dir="ltr"><<a moz-do-not-send="true"
href="mailto:andrew@roshambomedia.com" target="_blank">andrew@roshambomedia.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<p>I think that replacing the doorPi with a laptop will
solve a lot of the issues. I think our best debugging was
pointing to a known usb power issue with raspis.</p>
<p>I have a laptop I can donate to this cause if anyone else
thinks this makes sense as a solution.</p>
<p>Thanks,<br>
Andrew</p>
<div class="HOEnZb">
<div class="h5">
<div class="gmail_quote">On Jan 20, 2014 1:27 PM, "Sam
Tepper" <<a moz-do-not-send="true"
href="mailto:sam.tepper@gmail.com" target="_blank">sam.tepper@gmail.com</a>>
wrote:<br type="attribution">
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> I know this
was tongue and cheek, but the object is (or should
be) to have a number of people learn and volunteer
to help, and not have to depend on any one
person. I'd be happy to learn/help all I need to
fix the door when it's broken - I believe I am
qualified, and I enjoy slave labor and menial
work.<br>
<br>
<br>
<div>On 01/20/2014 12:51 PM, Max Klein wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>
<div>
<div>Do you want to be lavished with
stress, anguish and minimal praise for
the the thankless task of maintaining
the sudo door "sudoor"? Well now is your
chance. <br>
<br>
Imagine a your mirth at suddenly being
responsible for a critical but poorly
working access mechanism!<br>
<br>
</div>
Why isn't the door electric door opening
working reliably? I don't know, but I can
tell you how its supposed to work, which
parts are the most reliable, and the full
history. Then you can fix it.<br>
<br>
</div>
Requirements: None except patience, and I
will teach you whatever relevant skills are
necessary to make as poorly a working door
as already exists. <br>
<br>
</div>
Contact me, <br>
notconfusing<br>
<div>
<div>
<div>
<div><br>
</div>
</div>
</div>
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