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[DPRG] "A great Arduino project for people who really like blinking LEDs."

Subject: [DPRG] "A great Arduino project for people who really like blinking LEDs."
From: dpa dpa at mail.isem.smu.edu
Date: Wed Sep 30 19:14:33 CDT 2009

So then we'd need frequency-hopping on the "weapon."  I feel an arms
race coming' on...

dpa



Dale Wheat wrote:
> Jeff,
>
> When a group of us took welding last January, we were told the element
> darkens in a matter of microseconds in even the cheapest units
> (~$50).  The higher-end units were rated in nanoseconds, which
> everyone knows are too small to actually exist.
>
> So sure you could easily and inexpensively build a counter-weapon to
> this 'bedazzler'.  The trick is to completely seal the optical path as
> even reflections seem to have a detrimental physiological effect.
>
>
> Thanks,
>
> Dale Wheat
>
> (972) 486-1317
> (877) DALE WHEAT
> http://dalewheat.com
>
>
> Jeff Koenig wrote:
>> Interesting link!
>>
>> I suddenly have an urge to modify one of those electronically
>> controlled, self darkening welder's masks with a front-mounted
>> photodiode sensor.
>>
>> If the optical element on the mask transitions quickly enough, I bet
>> it wouldn't be hard to rig up something that would autoblank an
>> offending 8-10 Hz bright light.
>>
>> Of course, I'd open source it, too.
>>
>> -Jeff
>>
>>
>>
>>
>>
>> On Tue, Sep 29, 2009 at 5:21 PM, dpa <dpa at mail.isem.smu.edu
>> <mailto:dpa at mail.isem.smu.edu>> wrote:
>>
>>
>>     http://ladyada.net/make/bedazzler/
>>
>>
>>     Dale?
>>
>>     cheers!
>>     dpa
>>
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