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The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:16:26 ADT
David Honig (honig@otc.net)
Tue, 31 Mar 1998 09:27:02 -0800
At 03:44 PM 3/30/98 EST, Ryan Lackey wrote:
>If only there were a simple way to graft an LED and microswitch onto them
>to enter a PIN and reveal internal state without trusting the local
>computer... Sounds like a fun hardware hacking project.
I thought of this too, with just a photosensor port, but a silica window
wouldn't be as resistant
to severe abuse as the stainless. Unless I'm wrong.
But shouldn't the device's analog-wire-to-digital-signal-converter be able
to sense, e.g., the timing of
a simple (momentary) doorbell switch attached to its "one wire" bus? Use
a unary-coding
of your data...a battery and a switch.. you can pulse-dial a telephone this
way, too, BTW. This would be essentially all software with zero mods to
the can,
and you could plug the can into a modified holder containing the switch
and a battery. I don't know if the APIs give access to this low level.
Also, how hard is it to detect EM radiation coming from the cans? Very low
power devices
hermetically sealed with a battery in steel is pretty tight...
------------------------------------------------------------
David Honig Orbit Technology
honig@otc.net Intaanetto Jigyoubu
When exponentiation is outlawed, only outlaws will exponentiate.
The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:16:26 ADT