[hackerspaces] The Elusive RFID Equipment Interlock

Bob Bownes bownes at gmail.com
Mon Aug 24 22:39:51 CEST 2015

We are working on it as well. Integration with Seltzer and COTS door
readers/strikers/mag locks as well as contactors for controlling heavy
equipment. The contactors are locked away in the electrical room so cannot
be bypassed.

The one icky hack is that the card readers are a read once no matter how
long you hold the card in front of the reader. This means you can turn the
equipment on by holding the card in proximity, but off is either a timer or
hold the card near the reader as long as you want to use the equipment
(think card holder) force a re-read by power cycling the reader every N
seconds. Neither is really 'clean'.

On Mon, Aug 24, 2015 at 4:16 PM, Joshua Pritt <ramgarden at gmail.com> wrote:

> We were thinking about using something similar to our front door lock
> (Access Control aka ACON) to enable/disable heavy equipment for only
> certain people.
> https://wiki.melbournemakerspace.org/projects/RFIDDoorLock
> On Mon, Aug 24, 2015 at 4:14 PM, Robert Davidson <
> robert at dallasmakerspace.org> wrote:
>> Has anyone pulled it off?
>> I am looking for examples of spaces that actively use a RFID lockout on
>> equipment.
>> If you have solved the mythical RFID Interlock could you share:
>> User Operation?
>> Front/Back-end Software?
>> Front/Back-end Hardware?
>> Issues on acceptance?
>> Issues on reliability?
>> How do you add users?
>> Automatic removals?
>> Lessons Learned?
>> as well as does anyone know of any:
>> Commercial Solutions?
>> Open Source Solutions?
>> Specifically I am looking for something off the shelf that I can
>> integrate with 1000-10000 Members.
>> I would like to have at least 10 machines and capability of multi site up
>> to 100 or so devices.
>> Integration into LDAP or AD is a key requirement for us as we don't want
>> a standalone software that requires intervention if there membership lapses.
>> Thanks!
>> Robert Davidson
>> Dallas Makerspace
>> _______________________________________________
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