[Noisebridge-discuss] Door bell

David Stainton dstainton415 at gmail.com
Wed Feb 3 10:02:13 UTC 2010


Greetings Blaine,

I've got to say that while I appreciate your enthusiasm in getting
this doorbell problem solved I think
RFID is a horrible technology for that purpose...

I know a thing or two about RFID from hanging out with Chris Paget who
graciously taught a couple
of RFID workshops at Noisebridge...

There is just now way I'm going to walk around with an RFID tag and I
don't recommend anyone else do it either.
The presence of an RFID tag can be detected from across the street or
perhaps even farther away.
RFID sensors could in fact be placed around the city to track the
movements of Noisebridgers.
Or how about a public-garbage-can that explodes when a certain number
of Noisebridges congregate near it?
Sound crazy? I'm sure that similar devices are being developed for
sucka fool US passports with the new RFID tag...

I will block the RFID access control motion. I will explain to all my
Noisebridge friends my view on this matter.
I won't be the only one to enthusiastically disagree.

Please give it some thought before responding.
BTW this seems to be your first post to the noisebridge-discuss list
and you are suggesting this. Wow.

Cheers

~david415



On Tue, Feb 2, 2010 at 10:31 PM, Blaine Forbort <b.forbort at gmail.com> wrote:
> I had a hell of a time getting in on Sunday.  There where a ton of people
> near the buzzer, so I found it very odd that no one let me in.  Then a few
> hours later someone reported that they had been buzzing for 10+ minutes, and
> even though I was sitting near the buzzer, I only heard the buzzer go off
> once and answered it immediately.
>
> I also spoke to another individual about the idea of an RFID system for the
> gate.  The concept was very simple: a pool of RFID tags would be left at
> Noisebridge.  You grab an RFID tag on your way out, and it would grant you
> automatic reentry on your return.  The hardware for such a system would be
> VERY simple; something like this:
> http://www.makershed.com/ProductDetails.asp?ProductCode=MKPX2 with a
> microcontroller and a relay.
>
> The question is, would Noisebridge cover the cost of the RFID tags?  They
> run from $1.50 to $5 each depending on what kind of chip they use (Hitag
> would be nice so it would work with my implant).  If so, I'd be very happy
> to help with the project.
>
> Blaine



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