[sdiy] Theremin

[Scott Gravenhorst]

"Paul Maddox" <P.Maddox at signal.qinetiq.com> wrote:
>Scott,
>
>> Reflected brightness is measured.  
>
>cool.
>
>> I think the round trip time is a bit quick for simple analog circuits or
>> even digital to measure.
>
>so, zero latency then ;-)

Pretty close, I just calculated the time it takes light to travel ten feet
at about 1.018e-8 seconds (through a vacuum).  That's not impossible to
measure, even with DIY equipment, but I think the light based theremin
circuit is too simple for this kind of measurement.


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